Document:

<PAGE>
                                                                   EXHIBIT 10.76

                                     LEASE

                                    between

                              THE CONNELL COMPANY

                                                      Landlord

                                      and

                               GENTA INCORPORATED

                                                      Tenant
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                               TABLE OF CONTENTS

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                                                                                     PAGE
                                                                                     ----
<S>                                                                                  <C>
ARTICLE I. BASIC LEASE INFORMATION ...............................................    1

       Section 1.01.  Building and Land; Real Estate .............................    1
       Section 1.02.  Demised Premises ...........................................    1
       Section 1.03.  Base Rent ..................................................    1
       Section 1.04.  Letter of Credit ...........................................    2
       Section 1.05.  Term .......................................................    3
       Section 1.06.  Tenant's Pro Rata Share ....................................    3
       Section 1.07.  Relocation .................................................    3

ARTICLE II. DEFINITIONS ..........................................................    3

ARTICLE III. PREPARATION OF THE DEMISED PREMISES .................................    6

       Section 3.01.  Demised Premises Accepted "AS, IS"; Tenant Work ............    6
       Section 3.02.  Tenant's Early Access ......................................    7
       Section 3.03.  Insurance Covering Tenant Work .............................    8
       Section 3.04.  Certain Landlord Representations; No Other Representation ..    8

ARTICLE IV. OPTION TO RENEW ......................................................    8

       Section 4.01.  Option to Renew ............................................    8

ARTICLE V. RENT ..................................................................    8

       Section 5.01.  Base Rent ..................................................    8
       Section 5.02.  Tax Increase Amount ........................................    9
       Section 5.03.  Building Operating Costs; Adjustments ......................    9
       Section 5.04.  Payment of Rent ............................................   13

ARTICLE VI. SIGNS ................................................................   13

       Section 6.01.  Directory ..................................................   13
       Section 6.02.  Signs ......................................................   13

ARTICLE VII. REPAIRS, ALTERATIONS, COMPLIANCE, SURRENDER .........................   14

       Section 7.01.  Repairs by Landlord ........................................   14
       Section 7.02.  Repairs, Maintenance and Improvements by Tenant ............   14
       Section 7.03.  Approval by Landlord of Improvements .......................   14
       Section 7.04.  Emergency Repairs ..........................................   15
       Section 7.05.  Electrical Lines ...........................................   15
       Section 7.06.  Surrender of Premises ......................................   16

ARTICLE VIII. SERVICES AND UTILITIES .............................................   16

       Section 8.01.  Landlord's Services ........................................   16
       Section 8.02.  Electricity ................................................   17
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<S>                                                                                  <C>
ARTICLE IX. USE AND OPERATION ....................................................   18

       Section 9.01.  Use ........................................................   18
       Section 9.02.  Rules and Regulations Established by Landlord ..............   18
       Section 9.03.  Restriction on Tenant's Activities .........................   18
       Section 9.04.  Illegal Purposes ...........................................   18

ARTICLE X. TRANSFER OF INTEREST; PRIORITY OF LIEN ................................   19

       Section 10.01. Assignment, Subletting, etc. ...............................   19
       Section 10.02. Subordination ..............................................   20
       Section 10.03. Attornment .................................................   20
       Section 10.04. Transfer of Landlord's Interest ............................   20
       Section 10.05. Mortgagee's Rights .........................................   21

ARTICLE XI. COMMON AREA ..........................................................   21

       Section 11.01. Use of Common Area .........................................   21
       Section 11.02. Landlord's Rights ..........................................   21
       Section 11.03. License Numbers ............................................   21
       Section 11.04. Landlord's Obligation with Respect to Parking Area .........   22

ARTICLE XII. DESTRUCTION OR DAMAGE ...............................................   22

       Section 12.01. Rent Abatement .............................................   22
       Section 12.02. Option to Terminate ........................................   22
       Section 12.03. Landlord's Obligation to Rebuild ...........................   22
       Section 12.04. Landlord's Liability .......................................   23

ARTICLE XIII. CONDEMNATION .......................................................   23

       Section 13.01. Definitions ................................................   23
       Section 13.02. Taking of Demised Premises .................................   23
       Section 13.03. Taking for Temporary Use ...................................   23
       Section 13.04. Disposition of Awards ......................................   24

ARTICLE XIV. TENANT'S INSURANCE ..................................................   24

       Section 14.01. General Insurance ..........................................   24
       Section 14.02. Tenant Liability Insurance .................................   24
       Section 14.03. Tenant Fire Insurance ......................................   25
       Section 14.04. Tenant Worker's Compensation Insurance .....................   25
       Section 14.05. Other Tenant Insurance .....................................   25
       Section 14.06. Waiver of Subrogation ......................................   25
       Section 14.07. Insurance Rate .............................................   25
       Section 14.08. Toxic and Hazardous Materials ..............................   25

ARTICLE XV. INDEMNIFICATION AND LIABILITY ........................................   26

       Section 15.01. Indemnification ............................................   26
       Section 15.02. Waiver and Release .........................................   27
       Section 15.03. Liability of Landlord ......................................   27

ARTICLE XVI. DEFAULT; REMEDIES ...................................................   28
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<S>                                                                                  <C>
       Section 16.01. Default ....................................................   28
       Section 16.02. Landlord's Remedy ..........................................   29
       Section 16.03. Landlord's Re-Entry ........................................   29
       Section 16.04. Landlord's Additional Remedies .............................   29
       Section 16.05. Agreed Final Damages .......................................   30
       Section 16.06. Waiver of Right of Redemption ..............................   30
       Section 16.07. Landlord's Right to Perform for Account of Tenant ..........   30
       Section 16.08. Additional Remedies, Waivers, etc. .........................   30

ARTICLE XVII. TENANT'S ESTOPPEL CERTIFICATE ......................................   31

ARTICLE XVIII. RIGHT OF ACCESS ...................................................   31

ARTICLE XIX. COVENANT OF QUIET ENJOYMENT .........................................   31

ARTICLE XX. MISCELLANEOUS ........................................................   31

       Section 20.01. Interpretation .............................................   31
       Section 20.02. Construction of Words and Phrases ..........................   32
       Section 20.03. Written Agreement Required .................................   33
       Section 20.04. Notice .....................................................   33
       Section 20.05. Survival of Provisions upon Termination of Lease ...........   34
       Section 20.06. Successors and Assigns .....................................   34
       Section 20.07. Guarantor of Tenant ........................................   34
       Section 20.08. Tenant at Sufferance .......................................   34
       Section 20.09. Interest ...................................................   34
       Section 20.10. Late Charge ................................................   34
       Section 20.11. Non-Waiver .................................................   34
       Section 20.12. Broker .....................................................   35
       Section 20.13. Short Form Lease ...........................................   35
       Section 20.14. Mechanics' Liens ...........................................   35
       Section 20.15. Corporate Authority ........................................   35
       Section 20.16. Force Majeure ..............................................   35
       Section 20.17. Governing Law ..............................................   36
       Section 20.18. Financial Statements .......................................   36

ARTICLE XXI. ENVIRONMENTAL MATTERS ...............................................   36

       Section 21.01. Industrial Site Recovery Act ...............................   36
       Section 21.02. Spill Act ..................................................   38
       Section 21.03. Other Environmental Laws ...................................   39
       Section 21.04. Survival of Environmental Terms and Conditions .............   39

EXHIBITS

Exhibit A             Legal Description of the Land
Exhibit B             Rental Plan showing the Demised Premises
Exhibit C-1           Plans and Specifications
Exhibit C-2           Tenant Workletter
Exhibit D             Rules and Regulations
Exhibit E             Building Janitorial Specifications
Exhibit F             Form of Letter of Credit
Exhibit G             Commencement Date Addendum
Exhibit H             Tenant Reserved Parking Spaces
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                                      iii
<PAGE>
                        THIS IS A CONFIDENTIAL DOCUMENT

                                     LEASE

            THIS AGREEMENT OF LEASE (together with all Exhibits and Schedules
attached or to be attached hereto, this "Lease") is dated as of June 28, 2000,
between THE CONNELL COMPANY, a New Jersey corporation, whose address is 45
Cardinal Drive, Westfield, New Jersey 07090 (subject to Section 10.04 hereof,
"Landlord") and GENTA INCORPORATED, a Delaware corporation whose address is 99
Hayden Avenue, Suite 200, Lexington, Massachusetts 02421("Tenant").

            Landlord hereby leases to Tenant and Tenant hereby rents from
Landlord the Demised Premises (hereinafter defined) for the Term (hereinafter
defined) at the rent and subject to all of the terms and conditions set forth
herein. Intending to be legally bound hereunder and in consideration of $1.00
and other good and valuable consideration, the receipt and sufficiency of which
are hereby acknowledged, Landlord and Tenant hereby agree with each other as
follows:

                       ARTICLE I. BASIC LEASE INFORMATION

            Section 1.01. Building and Land; Real Estate:

            The "Building" is Connell Corporate Center II, Two Oak Way, Berkeley
Heights, New Jersey 07922. The Land shall mean all that real property which is
more particularly described in Exhibit A attached hereto and made a part hereof.
The Building and the Land are sometimes referred to collectively herein as the
"Real Estate."

            Section 1.02. Demised Premises:

            The Demised Premises is the portion of the Building leased to
Tenant, including terrace, if any, consisting of 10,455 usable square feet of
floor area converted to 12,807 rentable square feet of floor area by multiplying
the usable square feet by 122.5%, and located on the second floor and designated
as "Demised Premises" on the "Rental Plan" (which is attached hereto as Exhibit
B). The Demised Premises includes any alterations, additions, improvements or
repairs of any nature made thereto. This computation of rentable square footage
shall be binding and conclusive on the parties and their successors and assigns.

            Section 1.03. Base Rent:

            "Base Rent" shall be an amount equal to $25.00 per rentable square
foot, or $320,175.00 in the aggregate per annum ($26,681.25 per month); and
shall be payable per Section 5.01 hereof (it being understood that payment for
electricity per Section 8.02 hereof (which, as of the date hereof, is $1,440.79
per month) is an amount in addition to Base Rent); provided, however, that
during any Renewal Term, Base Rent shall be an amount determined pursuant to
Section 4.01 (b) hereof.
<PAGE>
            Section 1.04. Letter of Credit:

            (a) Tenant shall cause an irrevocable, transferable letter of
credit, substantially in the form of Exhibit F attached hereto (the "Letter of
Credit"), to be issued and outstanding in favor of Landlord, at all times from
the date hereof until sixty (60) days after the expiration or earlier
termination of this Lease. Each Letter of Credit shall (i) be issued by a
domestic United States financial institution with a credit rating of at least A1
by Moody's Investors Service, Inc. (or upon modification or replacement of such
financial rating system, its then equivalent rating) (the "Required Credit
Rating") and otherwise acceptable to Landlord (the "Letter of Credit Provider"),
(ii) have an expiration date of not earlier than one calendar year following the
date of issue, (iii) at all times be in an available amount (the "Required
Letter of Credit Amount") of not less than nine (9) months of Base Rent, which
as of the date hereof is $240,131.25, and (iv) provide that during the Term it
shall be automatically extended for an additional period of one year from the
scheduled expiration date unless at least thirty (30) days prior to such date
Landlord receives from the Letter of Credit Provider thereof notice in writing
that such Letter of Credit Provider elects not to renew such Letter of Credit
for such additional period. If the Letter of Credit Provider elects not to renew
such Letter of Credit for such additional period, then Tenant shall cause a new
Letter of Credit to be issued in replacement thereof from a Letter of Credit
Provider at least fifteen (15) days prior to the expiration date of the existing
Letter of Credit; provided, however, that Tenant shall not permit an existing
Letter of Credit to expire until such new Letter of Credit has been issued.

            (b) If, while a Letter of Credit is required to be outstanding
hereunder, the financial rating of the Letter of Credit Provider providing the
Letter of Credit is less than the Required Credit Rating, then Landlord may
require Tenant to provide, and Tenant shall provide, a replacement Letter of
Credit issued by a Letter of Credit Provider with a credit rating that meets the
Required Credit Rating within thirty (30) days of demand therefor by Landlord,
which replacement Letter of Credit shall comply with the terms of Section
1.04(a) hereof, provided that nothing in this Section 1.04(b) shall affect the
obligations of Tenant under Section 1.04(a) hereof. Promptly following receipt
of such replacement Letter of Credit, Landlord shall surrender the Letter of
Credit being replaced to the Letter of Credit Provider thereof.

            (c) Notwithstanding the foregoing, on the one year anniversary of
the Commencement Date and each anniversary thereafter, Landlord may (by
providing written notice thereof to Tenant) reduce the Required Letter of Credit
Amount by an amount equal to two (2) months of Base Rent if (i) Tenant shall
have provided Landlord with Tenant's audited financial statements for the prior
year (and any other financial statements required under Section 20.18 hereof),
(ii) Landlord decides, in its sole discretion, that the financial condition of
Tenant merits that the Required Letter of Credit Amount be so reduced and (iii)
no Event of Default shall have occurred at any time during the Term; provided,
however, that in no event shall the Required Letter of Credit Amount be less
than an amount equal to three (3) months of Base Rent.

                                       2
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            Section 1.05. Term:

            The "Term" of this Lease shall commence on the Commencement Date and
shall continue for five (5) years thereafter (provided that if the Commencement
Date is not the first day of a month, then in addition to such five (5) year
period, the Term shall include an additional number of days equal to the number
of days in the period from and including the Commencement Date to and including
the last day of the month (of the same year) on which the Commencement Date
occurred), unless sooner terminated or renewed in accordance with the provisions
of this Lease. If Tenant exercises the Renewal Option pursuant to Section
4.01(a) hereof, the "Term" shall include the renewal period.

            Section 1.06. Tenant's Pro Rata Share:

            For purposes of this Lease, Tenant's Pro Rata Share shall be the
ratio of the total rentable square footage of the Demised Premises to the total
rentable square footage of the Building. Landlord and Tenant have determined
that Tenant's Pro Rata Share is 4.103%, calculated as follows: Demised Premises
of 12,807 rentable sq. ft. divided by the rental Area of Building of 312,143 sq.
ft. = 0.04103 x 100 = 4.103%. This determination of Tenant's Pro Rata Share
shall be binding and conclusive on the parties, and their successors and
assigns.

            Section 1.07. Relocation:

            At any time and from time to time during the Term, on at least
thirty (30) days prior notice to Tenant, Landlord shall have the right to move
Tenant out of the Demised Premises and relocate Tenant to other space within
Connell Corporate Center for the balance of the Term. In the event Landlord
exercises this right of relocation, Landlord shall, at its sole cost and
expense, decorate the new premises substantially similarly to the Demised
Premises and shall remove, relocate and reinstall Tenant's furniture, trade
fixtures, furnishings and equipment. Upon completion of all work in the
substitute premises, Tenant shall surrender the Demised Premises. Following the
relocation, this Lease shall continue in full force and effect; provided,
however, that (a) the description of the Demised Premises, the Building and the
Real Estate, shall be deemed to be amended to describe the new premises; and (b)
the Rent shall be appropriately modified if the square footage of the new
premises is not the same as that of the original Demised Premises.

                            ARTICLE II. DEFINITIONS.

            Section 2.01. As used herein, the terms below shall have the
following meanings:

            (a) "Appraisal Procedure" shall mean the following: within ten (10)
days after the expiration of the thirty (30) day period specified in Section
4.01(b) hereof, each party shall appoint a disinterested, independent appraiser
who is a member of the American Institute of Real Estate Appraisers (or a
successor organization or, if none exists, the closest similar organization) and
has at least five years experience appraising rental properties in the Berkeley
Heights area (which shall include the Route 78 corridor from and including Exit
43 to and including Exit 33) (an "Appraiser"). Within twenty (20) days after
their appointment, the two Appraisers so appointed shall appoint a third
Appraiser. If no such third Appraiser is appointed within thirty (30) days after
the appointment of the two Appraisers, then either party may apply to the
American Arbitration Association ("AAA") to make such appointment, and both
parties shall be bound by such appointment. Each Appraiser appointed pursuant to
the foregoing procedure shall be instructed to determine the amount of Market
Rent within twenty (20) days after his or her appointment. Each of the three
Appraisers shall determine the value of Market Rent applying the parameters set
forth in Section 4.01(b). The values of the Market Rent determined by each of
the three Appraisers shall then be averaged, the determination which differs
most from such average shall be excluded, the remaining two values shall then be
averaged, and such average shall be the Market Rent, which shall be final and
binding on the parties. The expenses and fees of all such Appraisers shall be
shared equally between Landlord and Tenant.

                                       3
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            (b) "Assessed Valuation" shall mean the assessed valuation of the
Real Estate, including any added and/or omitted assessments, as determined by
the real estate tax records of the Township of Berkeley Heights.

            (c) "Base Rent" shall have the meaning set forth in Section 1.03 of
this Lease.

            (d) "Base Tax Rate" shall mean the real estate tax rate in effect
for the calendar year 2001.

            (e) "Building" shall have the meaning set forth in Section 1.01 of
this Lease.

            (f) "Building Operating Costs" shall have the meaning set forth in
Section 5.03(c),(d) and (e) of this Lease.

            (g) "Business Hours" shall mean, at a minimum, the Business Hours
specified in Paragraph 5 of Exhibit D to this Lease, plus any additional hours
or days hereafter designated by Landlord as Business Hours; it being understood
that Landlord reserves the right to change the days designated as "Holidays" on
such Exhibit D as provided in this Lease.

            (h) The "Commencement Date" of this Lease shall be the earliest of
(i) the day on which Tenant, having completed the Tenant Work, obtains a
Certificate of Occupancy for the Demised Premises; or (ii) the day on which
Tenant commences to do business in the Demised Premises; or (iii) November 1,
2000; provided, however, in the event (I) the Tenant Work shall not be completed
by November 1, 2000 as a direct result of the failure of the Landlord to respond
to plan approval requests made by Tenant with respect to the Tenant Work within
fifteen (15) business days following Landlord's receipt of such a request or
(II) the Tenant Work shall not be completed, and a Certificate of Occupancy
shall not have been obtained, by November 1, 2000 as a direct result of the
existence, prior to the commencement of the Tenant Work, of a material latent
defect in the base Building (provided, however, that this clause (II) shall only
be applicable if Tenant shall have notified Landlord, in writing, of the
existence of such latent defect at the time of such discovery, and the parties
reasonably agree that the existence of such material latent defect is material
to the completion of the Tenant Work), then the Commencement Date shall be
extended by the number of days late (i.e., beyond the 15 business day period)
Landlord's response was to such plan approval request (or, as applicable, the
number of days which the existence of the latent defect directly contributed to
such delay), but in any such case the Commencement Date shall not be extended to
a date beyond the earlier to occur of (x) the completion of the Tenant Work (and
the date a Certificate of Occupancy for the Demised Premises is obtained) or (y)
the date on which Tenant commences to do business in the Demised Premises.
Within 30 days after the Commencement Date the parties shall execute a
Commencement Date Addendum in the form attached as Exhibit G to this Lease;
provided, however, that the failure by either party to execute such Commencement
Date Addendum (i) shall not in any way affect the date of the Commencement Date
or any of the terms of this Lease and (ii) shall not constitute a breach of this
Lease.

            (i) The "Common Area" shall mean, collectively, without limitation,
the hallways, entryways, stairs, cafeteria, elevators, driveway, sidewalks,
parking areas, loading areas, trash facilities, and all other areas and
facilities of the Building and the Land provided from time to time by Landlord
for the general use and convenience of Tenant with other tenants and their
respective employees, servants, invitees, licensees or other visitors.

            (j) "Demised Premises" shall have the meaning set forth in Section
1.02 of this Lease.

            (k) "Expiration Date" shall be the last day of the Term. If this
Lease shall have been renewed, the Expiration Date shall be the last day of the
Term as so renewed. Notwithstanding anything otherwise to the contrary herein,
if this Lease is cancelled or terminated prior to the Expiration Date by

                                       4
<PAGE>
reason of an Event of Default (as hereinafter defined), Tenant's liability under
the provisions of this Lease shall continue until the date the Term would have
expired had such cancellation or termination not occurred or as otherwise
provided herein.

            (l) "Extra Taxes" shall have the meaning set forth in Section
5.02(b) of this Lease.

            (m) "Land" shall have the meaning set forth in Section 1.01 of this
Lease.

            (n) "Letter of Credit" shall have the meaning set forth in Section
1.04 hereof.

            (o) "Mortgage" shall mean any mortgage, deed to secure debt, trust
indenture, deed of trust or other security document or instrument which may now
or hereafter affect, encumber or be a lien upon the Demised Premises, the
Building, the Land, and any spreading agreements, including, without limitation,
any renewals, modifications, consolidations, replacements and extensions
thereof.

            (p) "Mortgagee" shall mean the holder of any Mortgage at any time.

            (q) "Operating Increase Amount" shall have the meaning set forth in
Section 5.03(a) of this Lease.

            (r) "Operating Year" shall mean any calendar year. The "First
Operating Year" is the calendar year 2001.

            (s) "Parking Area" shall mean those portions of the Real Estate
which are designated for parking by Landlord, from time to time. Up to 10% of
the parking spaces may be designated reserved by the Landlord, it being
understood that Section 8.01 (c) of this Lease sets forth the number of parking
spaces designated as reserved for Tenant. Tenant acknowledges and agrees that
Landlord shall not be responsible for the enforcement of any parking rules or
regulations with respect to any reserved parking spaces in the Parking Area.

            (t) "Plans and Specifications" shall have the meaning set forth in
Section 3.01 hereof.

            (u) "Real Estate" shall have the meaning set forth in Section 1.01
hereof.

            (v) "Real Estate Tax Base" shall mean the dollar amount of real
estate tax payable with respect to the Real Estate for calendar year 2001,
determined by multiplying the Assessed Valuation by the Base Tax Rate.

            (w) "Rent" shall mean the aggregate of Base Rent, Tax Increase
Amount, Extra Taxes, Operating Increase Amount (each as defined herein) and any
other charges payable to Landlord hereunder, including utility charges.

            (x) "Tax Increase Amount" shall have the meaning set forth in
Section 5.02(a) of this Agreement.

            (y) "Tax Year" shall mean any calendar year.

            (z) "Taxes" shall mean all real estate taxes, charges and
assessments imposed upon the Real Estate. If any franchise, capital stock,
capital gains, rent, income, profit or any other tax or charge of any nature
whatsoever shall be substituted in whole or in part for the current ad valorem
taxes now or hereafter imposed upon the Real Estate due to a change in the
method of taxation or assessment,

                                       5
<PAGE>
such franchise, capital stock, capital gains, rent, income, profit or other tax
or charge shall be deemed included as Taxes.

            (aa) "Tenant's Agents" shall mean, without limitation Tenant's
employees, servants, representatives, agents, licensees, permitted subtenants
and assignees, contractors, heirs, successors, legatees, and devisees.

            (bb) "Tenant's Pro Rata Share" shall have the meaning set forth in
Section 1.06 of this Lease.

            (cc) "Tenant Work" shall have the meaning set forth in Section 3.01
of this Lease.

            (dd) "Term" shall have the meaning set forth in Section 1.05 of this
Lease.

               ARTICLE III. PREPARATION OF THE DEMISED PREMISES.

            Section 3.01. Demised Premises Accepted "AS IS"; Tenant Work:

            (a) The Demised Premises have been inspected by Tenant, and are
accepted by Tenant under lease "AS IS". Tenant shall be responsible for any
design, demolition and construction, in accordance with this Article III and
Exhibits C-1 and C-2.

            (b) Tenant's proposed Plans and Specifications shall be submitted to
Landlord for approval. Within 15 business days following its receipt of such
proposed Plans and Specifications, Landlord shall respond to Tenant by approving
or requesting changes to such Plans and Specifications. Landlord's approval of
such Plans and Specifications shall not be unreasonably withheld, delayed or
conditioned. The completed interior design drawings, layouts and interior
specifications and HVAC drawings for the preparation of the Demised Premises
shall be annexed hereto and, as of the date of such annexation, made a part of
this Lease as Exhibit [C-1] and shall be referred to as the "Plans and
Specifications." The Tenant Workletter, annexed hereto as Exhibit C-2, sets
forth in detail the parties' understanding regarding building standards, Tenant
Work and certain other aspects of Tenant Work in the Building.

            (c) Construction, according to the Plans and Specifications ("Tenant
Work") shall be carried out and pursued to completion with reasonable diligence
by and at the expense of Tenant and with the cooperation of Landlord, upon the
terms and conditions set forth below. Tenant may begin Tenant Work on the later
of the date hereof and the approval by Landlord of the Plans and Specifications:

                  (i). Landlord has furnished Tenant with a written list of
                  contractors which Landlord has pre-approved to perform work in
                  the Building (the "Pre-Approved Contractors"). Prior to
                  commencing any Tenant Work, Tenant shall furnish to Landlord a
                  written list of contractors who are proposed to perform such
                  work, if any, who are not Pre-Approved Contractors. All
                  contractors (whether or not such contractors are Pre-Approved
                  Contractors) shall be first-class union contractors and shall
                  maintain current licenses with applicable governmental and/or
                  other enforcement authorities. Tenant shall furnish to
                  Landlord copies of such contractors' insurance policies
                  (whether or not such contractors are Pre-Approved
                  Contractors), including workers compensation, public liability
                  and property damage, all in amounts and with companies
                  acceptable to Landlord. Landlord shall have the right to
                  reject any such proposed contractors who are not Pre-Approved
                  Contractors by written notice to Tenant within ten days of
                  Landlord's receipt of the above information.

                                       6
<PAGE>
                  (ii). Tenant shall promptly apply for all approvals and
                  permits legally required in connection with the performance of
                  Tenant Work. If necessary, Landlord shall join in the
                  execution of the applications, and at Tenant's request, shall
                  cooperate with the prosecution of the application. Tenant
                  shall bear all fees, costs and expenses in connection with the
                  applications including any legal or other expenses incurred by
                  Landlord. Tenant shall prosecute the applications diligently
                  and use reasonable efforts to seek the approvals and permits
                  applied for and shall provide Landlord with copies of all
                  permits and approvals upon receipt thereof. Tenant shall
                  advise Landlord of its progress from time to time and upon
                  request by Landlord.

                  (iii). Promptly after all requisite approvals and permits have
                  been granted, Tenant shall commence the performance of Tenant
                  Work and shall diligently prosecute Tenant Work to completion.

                  (iv). Tenant shall perform or cause to be performed all of
                  Tenant Work in accordance with the Plans and Specifications,
                  all requirements of regulations of any applicable public
                  authority, and the terms and conditions of all insurance
                  policies and shall do so in a good and workmanlike manner.
                  Notwithstanding any failure by Landlord to object to any such
                  Tenant Work Landlord shall have no responsibility therefor.

                  (v). Tenant's contractors shall have access to the Demised
                  Premises during Business Hours and Landlord shall provide
                  water, heating or cooling to the extent such services are
                  being provided to the Demised Premises pursuant to the terms
                  of this Lease. Tenant's contractors may have access to the
                  Demised Premises beyond Business Hours, and water, heating or
                  cooling at Tenant's request, if Tenant agrees to pay utility
                  overtime charges on an hourly basis as set forth in the Rules
                  and Regulations (defined herein).

                  (vi). Tenant shall provide Landlord with "as built drawings"
                  upon completion of Tenant Work.

                  (vii). If any governmental authority requires that a
                  certificate of occupancy be issued with respect to the Demised
                  Premises as a result of Tenant Work, Tenant shall apply for,
                  obtain such certificate of occupancy and provide a copy
                  thereof to Landlord.

            Section 3.02. Tenant's Early Access:

            (a) Landlord shall permit Tenant to enter the Demised Premises
before Tenant Work is undertaken during normal Business Hours for the purposes
of inspection only.

            (b) Once Landlord shall have approved the Plans and Specifications,
Tenant shall be permitted to install furniture, computers and similar items in
the Demised Premises prior to the Commencement Date. If Tenant is permitted any
access to the Demised Premises prior to the Commencement Date (including without
limitation pursuant to the preceding sentence), it shall be at Tenant's sole
risk (except to the extent caused by the gross negligence or willful misconduct
of Landlord). If Tenant's workmen begin to perform Tenant Work, the foregoing
license is conditioned upon Tenant's Agents not interfering with Landlord's
employees, agents, servants, representatives or licensees, or the workmen of any
other tenant. Landlord shall not be liable in any way for any injury, loss or
damage of any nature whatsoever occurring as a result of early access to the
Demised Premises by Tenant or any employee, agent, servant, contractor or
representative thereof, except to the extent caused by the gross negligence or
willful misconduct of Landlord. Landlord shall have the right to impose such
additional conditions on tenant's early entry as Landlord, in its reasonable
discretion, deems appropriate.

                                       7
<PAGE>
            Section 3.03. Insurance Covering Tenant Work:

            Tenant shall not make or cause to be made any alterations, repairs
or installations, or perform Tenant Work or any other work to or on the Demised
Premises unless Tenant shall obtain, or shall require all its contractors to
obtain, and have in force during the performance of such work, public liability
and worker's compensation insurance to cover every contractor to be employed as
set forth in Section 3.01(b)(i) hereof. Such policies shall be in such amounts
and on such terms as Landlord deems appropriate; they shall be non-cancellable
without thirty (30) days' prior notice to Landlord by the insurance company. In
accordance with Section 3.01(b)(i) hereof, Tenant shall supply Landlord with
copies of the insurance policies prior to commencing any Tenant Work.

            Section 3.04. Certain Landlord Representations; No other
Representation:

            (a) Landlord represents and warrants to Tenant that, to the best of
Landlord's knowledge, (i) the base Building and the Common Areas are in
compliance with all applicable laws and regulations, including without
limitation building codes, environmental laws and the Americans with
Disabilities Act; (ii) all applicable certificates of occupancy and other
required permits with respect to the base Building and Common Areas have been
obtained and are in full force and effect; and (iii) there are no outstanding
violation notices with respect to any portion of the Building which if not
corrected would delay or prevent the issuance to Tenant of any required building
permits or certificates of occupancy or similar permits and approvals for the
Tenant Work and/or for Tenant's occupancy of the Demised Premises.

            (b) Landlord has made and makes no representations, covenants or
warranties with respect to the Demised Premises, the Building or the Land,
except as expressly set forth in this Lease.

                          ARTICLE IV. OPTION TO RENEW.

            Section 4.01. Option to Renew.

            (a) Tenant shall have one option to renew this Lease (a "Renewal
Option") on the same terms and conditions and in the manner set forth below, for
a term of five (5) years, provided that there has been no Event of Default (or
event or condition which, with the passage of time or giving of notice, or both,
would constitute an Event of Default) that has occurred and is continuing at the
time of exercise of the option and that there have not been repeated recurring
Events of Default (whether or not previously cured) during the Term. In the
event Tenant desires to elect the Renewal Option, Tenant shall give Landlord
written notice of its exercise of the Renewal Option nine (9) months prior to
the Expiration Date of the Term. If Tenant fails to timely notify Landlord of
its exercise of the Renewal Option, then the Renewal Option shall expire.

            (b) Base Rent during the renewal term shall equal the prevailing
market rental rate for office space of comparable quality, design and location
in the Berkeley Heights area (which shall include the Route 78 corridor from and
including Exit 43 to and including Exit 33) for tenants occupying an amount of
space comparable to the amount then leased by Tenant, taking into consideration
any concessions (e.g., rent abatement, tenant improvement and other allowances;
it being understood for purposes of clarification that Landlord shall have no
obligation to provide Tenant with any tenant improvement allowance) then being
offered by landlords to prospective tenants for comparable space ("Market
Rent"), but in no case less than the then existing Base Rent. The parties shall
negotiate in good faith to establish the Market Rent. If the parties are unable
to agree on Market Rent within thirty (30) days after Tenant gives Landlord its
notice exercising the Renewal Option (the "Notice Date"), then the Appraisal
Procedure (as defined in Section 2.01) shall be utilized.

                                ARTICLE V. RENT.

                                       8
<PAGE>
            Section 5.01. Base Rent:

            Tenant shall pay Base Rent to Landlord, in the amount set forth in
Section 1.03, without notice or demand, in equal monthly installments in advance
beginning on the Commencement Date. Each subsequent installment shall be due to
and received by the Landlord on or before the first day of each month during the
Term. Notwithstanding the foregoing, in the event the Commencement Date is not
the first day of the month, on the Commencement Date Tenant shall pay Landlord
an amount equal to $924.56 (consisting of $877.19 for Base Rent and $47.37 for
electric) for each day of such first "partial" month of the Term.

            Section 5.02. Tax Increase Amount:

            (a) In addition to Base Rent and all other charges Tenant is
required to pay hereunder, Tenant shall pay the Tax Increase Amount (as
hereinafter defined) to Landlord as follows:

                  (i) If the Taxes for any Tax Year during the Term of this
            Lease shall be greater than the Real Estate Tax Base, then Tenant
            shall pay to Landlord, as a component of Rent and as provided in
            Section 5.02(a)(ii) below, the amount (the "Tax Increase Amount")
            determined by multiplying the difference between the Taxes for the
            applicable Tax Year and the Real Estate Tax Base by Tenant's Pro
            Rata Share. If the Taxes for any Tax Year during the Term of this
            Lease shall be less than the Real Estate Tax Base, then Landlord
            shall refund to Tenant as provided in Section 5.02(a)(ii) below, the
            amount (the "Tax Decrease Amount") determined by multiplying the
            difference between the Real Estate Tax Base and the Taxes for the
            applicable Tax Year by Tenant's Pro Rata Share.

                  (ii) Within one hundred and eighty (180) days after the
            commencement of each Tax Year after and including the year in which
            the Assessed Valuation has been established, or as soon as
            practicable thereafter, Landlord shall submit to Tenant a copy of
            the bill(s) for the Taxes for such Tax Year and a statement (the
            "Tax Statement"), which shall indicate: (i) any annual increase (or
            decrease) in the Taxes, (ii) the effective date of such increase (or
            decrease), (iii) the Tax Increase Amount due, if any, (iv) the Tax
            Decrease Amount, if any, to be refunded and (v) any Extra Taxes due
            as set forth below. Tenant shall pay the Tax Increase Amount to
            Landlord within thirty (30) days after the issuance of the Tax
            Statement. Landlord shall pay the Tax Decrease Amount to Tenant
            within thirty (30) days after the issuance of the Tax Statement. Any
            Tax Increase Amount or Tax Decrease Amount for a period of less than
            a full Tax Year shall be ratably apportioned.

            (b) Tenant shall be liable for any portion of the Taxes, charges and
assessments imposed upon the Real Estate during the Term of this Lease which are
attributable to extraordinary improvements in the Demised Premises or the
Building constructed at Tenant's expense or for Tenant's specific benefit and
for which the taxing authority has assigned a distinguishable increase in
valuation in computing the Assessed Valuation ("Extra Taxes"). Tenant shall pay
to Landlord such Extra Taxes within thirty (30) days after issuance of the Tax
Statement as set forth above. Any Extra Taxes due for a period of less than a
full year shall be ratably apportioned. Tenant shall not be liable for any Extra
Taxes attributable to the improvements of any other Tenant.

            (c) Tenant's obligations for payment of Tax Increase Amount or Extra
Taxes during the Term shall survive the expiration or early termination of this
Lease.

            Section 5.03. Building Operating Costs, Adjustments:

            (a) Tenant hereby agrees that for each Operating Year during the
Term of this Lease for which the Building Operating Costs (as hereinafter
defined) budgeted for such Operating Year exceeds the Building Operating Costs
for the First Operating Year, Tenant shall pay to Landlord as a

                                       9
<PAGE>
component of Rent and in the manner further provided in this Section 5.03, an
amount (the "Operating Increase Amount") determined by multiplying the
difference between the budgeted Building Operating Costs for the applicable
Operating Year and the Building Operating Costs in the First Operating Year by
Tenant's Pro Rata Share. Within one hundred and eighty (180) days after the
commencement of each Operating Year, or as soon as practicable thereafter,
except for the First Operating Year, Landlord shall present to Tenant a
statement (the "Operating Statement") showing, inter alia, the Operating
Increase Amount, if any, due hereunder (the date upon which the Operating
Statement is presented to Tenant being hereinafter referred to as the "Billing
Date"). Tenant shall pay the Operating Increase Amount no less frequently than
monthly in advance in an amount determined by multiplying the Operating Increase
Amount for the applicable Operating Year by one-twelfth (1/12). These monthly
payments of the Operating Increase Amount shall be added to and paid
simultaneously with the Base Rent. If the total of such monthly payments made by
Tenant during any Operating Year is less than the Operating Increase Amount, as
shown on the next Operating Statement presented to Tenant, Tenant shall pay the
difference to Landlord within thirty (30) days after the Billing Date. If the
total of such monthly payments made by Tenant during any year is greater than
the Operating Increase Amount, as shown on the next Operating Statement
presented to Tenant, Landlord shall refund the excess amount to Tenant within
thirty (30) days after the Billing Date. Each Operating Statement shall indicate
(i) the Operating Increase Amount for the current year; (ii) the difference
between the actual dollar amount of Building Operating Costs and the budgeted
Building Operating Costs for the preceding Operating Year; (iii) the total of
the monthly payments made by Tenant hereunder for the account of the preceding
Operating Year, if applicable; and (iv) the amount of any overpayment or
underpayment by Tenant on account of the Operating Increase Amount for the
preceding year.

            (b) If Tenant disputes the amount or characterization of any item
contained in the Operating Statement by giving written notice thereof to
Landlord within sixty (60) days of the Billing Date, Tenant shall have the right
to designate a firm of independent certified public accountants to audit
Landlord's records upon which the Operating Statement is based, provided Tenant
first pays all sums due as shown on the Operating Statement first. Such audit
shall be conducted promptly after Tenant's notice of dispute is given to
Landlord. The fee for any audit conducted on Tenant's behalf shall be borne
solely by Tenant (subject to the penultimate sentence of this Section 5.03(b)).
Landlord shall have the right, at its sole expense (subject to the last sentence
of this Section 5.03(b)), to have Tenant's audit reviewed by a mutually agreed
upon third party nationally recognized certified public accountant, whose
determination shall be conclusive and binding on both Landlord and Tenant. If,
as a result of Tenant's inspection of Landlord's books or the audit of
Landlord's records and review by independent certified public accountants, an
error is discovered in the Operating Statement, Landlord shall revise the
Operating Statement accordingly and any overpayment by Tenant shall be refunded
by Landlord to Tenant forthwith and any underpayment shall be paid by Tenant on
demand. Any audit and subsequent adjustment in payment shall be deemed to be
conclusive of settlement of the dispute. If Tenant does not notify Landlord of a
dispute within sixty (60) days of receipt of any Operating Statement, Tenant
shall be deemed to have accepted such Operating Statement. Landlord's records
and any information provided by Landlord to auditors pursuant to this Section
5.03(b) shall be and remain confidential and shall not be made available by the
auditors or Tenant to any other person or entity, except to persons or entities
named in subpoena or other legal process, but only such portion of such
information that, in the reasonable opinion of Tenant's counsel, is required to
be disclosed in response to such process; provided, however, that Tenant shall,
before making the disclosure, promptly inform Landlord of Tenant's receipt of
any such subpoena or other process so as to afford Landlord the opportunity to
seek a protective order if it so desires. If the final audit discloses an error
in Landlord's determination of the Building Operating Costs in excess of five
percent (5%) in Landlord's favor, then all costs of the audits shall be borne by
Landlord. If the final audit discloses that Landlord's determination of the
Building Operating Costs was not in error in excess of two percent (2%) in
Landlord's favor, then all costs of the audits shall be borne by Tenant.

            (c) The "Building Operating Costs" shall include each and every
expense incurred in connection with the ownership, administration, management,
operation, insurance, maintenance and repair of the Real Estate, or reasonably
charged by Landlord if Landlord performs management services in connection with
the Real Estate, including management, consulting, reasonable legal and
accounting

                                       10
<PAGE>
fees, and, further, including but not limited to, wages, salaries and fees paid
to persons either employed by Landlord or engaged as independent contractors in
performing or managing the services related to the Real Estate, and such other
typical items of expense as indicated in Subsection (d) below. If any person or
independent contractor is employed with respect to more properties than the Real
Estate, the wages, salaries or fees paid therefor shall be allocated based on
time spent by such person or Contractor on matters relating to the Real Estate
(excluding time spent on items which are not Building Operating Costs) or the
degree of responsibility for the Real Estate compared to the other properties
involved.

            (d) Some of the typical items of expense which comprise or may
comprise the Building Operating Costs are or may be the following, but only to
the extent that they relate solely or are properly allocated to the Real Estate:

                  (i) Repairs and maintenance;

                  (ii) Utility costs, including but not limited to the cost of
            electricity to power HVAC units and to heat and light the Common
            Area;

                  (iii) Cleaning costs, including but not limited to windows,
            tenant premises and Common Areas;

                  (iv) Service contracts including but not limited to elevator,
            HVAC, janitorial and window cleaning, rubbish removal, exterminating
            and towel service;

                  (v) Costs of landscaping and snow removal;

                  (vi) Cost of redecorating Common Area;

                  (vii) Wages, salaries and other compensation, including taxes,
            insurance, retirement, fringe benefits, uniforms payable to
            employees performing services related to the Real Estate;

                  (viii) Reasonable fees and other compensation payable to
            independent contractors or other agents of Landlord performing
            services related to the Real Estate;

                  (ix) Cost of Landlord's insurance, including but not limited
            to, fire and extended coverage, public liability and property,
            rental value insurance (including Base Rent, estimated Tax Increase
            Amount and estimated Operating Increase Amount), elevator, worker's
            compensation, boiler and machinery insurance;

                  (x) Reasonable auditing, accounting, attorneys' and
            consultants' fees and disbursements incurred in connection with the
            maintenance and operation of the Real Estate;

                  (xi) A reasonable management fee to compensate Landlord for
            management services, if Landlord, its employees, agents or servants,
            perform same, or reasonable and customary fees for management
            services provided by an independent management company;

                  (xii) Any other expenses of any kind whatsoever reasonably
            incurred in managing, operating, maintaining and repairing the Real
            Estate;

                  (xiii) The cost, if any, of non-Tenant area capital
            improvements installed by Landlord after the completion of the
            Building as amortized over the useful life of such improvements,
            with that portion of the cost attributable to any Operating Year to
            be

                                       11
<PAGE>
            included in the Building Operating Costs for that Operating Year to
            the extent such capital improvements are reasonably expected to
            reduce Building Operating Costs or are required by a governmental
            authority under laws or regulations adopted after the Commencement
            Date; and

                  (xiv) The costs, charges and expenses, if any, incurred by
            Landlord in connection with any change of any company providing
            electric service to the Real Estate, including, without limitation,
            maintenance, repair, installation, and service costs associated
            therewith.

            (e) The term "Building Operating Costs" shall not include or be
deemed or construed to include:

                        (i) Costs incurred in connection with the construction
                  of the Building or the initial development of the Real Estate;

                        (ii) Costs for which Landlord is reimbursed by its
                  insurer, any tenant's insurer or any tenant;

                        (iii) Costs attributable to leasing of tenant spaces and
                  to resolving disputes with tenants, and costs of improvements
                  to the premises of other tenants in the Building;

                        (iv) Costs, expenses or expenditures relating to the
                  duties, liabilities or obligations of other tenants in the
                  Building;

                        (v) Interest, principal or other payments on mortgages
                  or other debt costs, if any;

                        (vi) Depreciation on the Building;

                        (vii) Taxes;

                        (viii) Leasing commissions;

                        (ix) Costs which are paid directly by any tenant;

                        (x) Wages, bonuses and other compensation of employees
                  of Landlord above the grade of property manager;

                        (xi) Costs of acquiring and installing artwork; and

                        (xii) Any cost representing an amount paid to a person,
                  firm, corporation or other entity related to Landlord that is
                  in excess of the amount which would have been paid in the
                  absence of such relationship;

            (f) Landlord and Tenant agree that with respect to all Building
Operating Costs, the actual costs thereof for the First Operating Year and for
each Operating Year thereafter shall be adjusted to reflect all Building
Operating Costs for a full year. Landlord and Tenant further agree that in the
event occupancy in the Building during the First Operating Year or any Operating
Year thereafter is less than ninety five percent (95%), then Building Operating
Costs for the First Operating Year or any other Operating Year, as applicable,
shall be "grossed up" to the amount of Building Operating Costs that, using
Landlord's reasonable projections, would normally be expected to be incurred
during the First

                                       12
<PAGE>
Operating Year or other Operating Year, as applicable, if the Building were
ninety five percent (95%) occupied during such First Operating Year or other
Operating Year.

            (g) Tenant's obligations for payment of Building Operating Costs
during the Term shall survive the expiration or early termination of this Lease
for costs incurred during the Term.

            (h) The amounts due with respect to any Operating Year pursuant to
Sections 5.02 and 5.03 of this Lease shall be aggregated or netted, as
applicable, so that only one payment is made, if any, with respect to such
amounts.

            Section 5.04. Payment of Rent:

            (a) Rent shall be paid without notice, demand, counterclaim, offset,
deduction, defense, or, except as expressly provided herein, abatement.

            (b) All Rent payable under this Lease shall be payable to Landlord
in currency of the United States of America at its address as set forth in
Section 20.04 or at such other address as Landlord shall designate by giving
notice to Tenant.

            (c) If Tenant shall fail to pay any Tax Increase Amount, Operating
Increase Amount, Extra Taxes, or any other charges payable hereunder, whether or
not the same are called Rent, Landlord shall have all remedies provided for in
the Lease or at law as in the case of nonpayment of Base Rent. Tenant's
obligations (accruing during the Term) under Article V and Article XXI hereof
shall survive the expiration or earlier termination of this Lease.

                               ARTICLE VI. SIGNS.

            Section 6.01. Directory:

            Landlord shall provide a directory of tenants in the first and
second floor lobby areas of the Building.

            Section 6.02. Signs:

            (a) Tenant shall have no right to install and maintain a sign on the
entrance doorway of the Demised Premises without Landlord's prior written
consent which shall not be unreasonably withheld or delayed. Landlord may permit
Tenant to identify its business name by lettering on the exterior of the Demised
Premises with Landlord's prior written consent as to dimensions, material,
content, location and design.

            (b) Tenant shall obtain and pay for all required permits and
licenses relating to such sign, if same are required. Copies of all such permits
and licenses shall be delivered to Landlord within a reasonable time after they
are issued.

            (c) Tenant shall not have the right to install or maintain any signs
in or at the Real Estate or visible from the outside of the Demised Premises.

            (d) Landlord shall have the right to remove any sign in order to
paint, or to make repairs, alterations or improvements in or upon the Building
or Demised Premises, at its expense. At the expiration of the Term, Tenant
shall, at Tenant's sole cost and expense, remove all signs and restore the area
in which they were affixed to its prior condition.

           ARTICLE VII. REPAIRS, ALTERATIONS, COMPLIANCE, SURRENDER.

                                       13
<PAGE>
            Section 7.01. Repairs by Landlord:

            Landlord shall make or cause to be made necessary repairs to, and
maintain, the Common Area, the Building (other than the Demised Premises, except
as expressly provided below in this Section 7.01) and the Land in a Class A
manner (comparable to that of other similar Class A office buildings in the
Berkeley Heights area, which shall include the Route 78 corridor from and
including Exit 43 to and including Exit 33), including, without limitation, that
Landlord shall make or cause to be made necessary repairs to the roof of the
Building and structural repairs to the foundation, exterior walls, floors,
windows, electrical, plumbing and mechanical systems of the Building, and any
load-bearing interior walls of the Demised Premises except for any damage to the
Building or Real Estate caused by (a) any act, omission or negligence of Tenant,
Tenant's agents or invitees; (b) the failure of Tenant to perform or comply with
any terms, conditions or covenants in this Lease; or (c) any alterations,
installations, additions or improvements made or to be made by Tenant. Damage
set forth in (a), (b) and (c) will be repaired by Landlord at Tenant's expense.

            Section 7.02. Repairs, Maintenance and Improvements by Tenant:

            (a) Tenant shall maintain and take good care of the Demised
Premises. Tenant, at its expense, shall promptly make all repairs in and about
the Demised Premises as shall be required by reason of (i) the performance or
existence of Tenant Work performed or to be performed by Tenant, (ii) the
installation, use or operation of Tenant's property in the Demised Premises,
(iii) the moving of Tenant's property in or out of the Building or (iv) the
misuse or neglect of Tenant or any of its employees, agents or contractors.
Except for repairs Landlord is specifically obligated to make, Tenant, at its
expense, shall be responsible for all repairs, maintenance and replacements
within the Demised Premises, ordinary wear and tear excepted. Notwithstanding
the foregoing, Landlord shall make all repairs required by the occurrence of
fire and other casualty as more particularly set forth in Section 12.03 hereof;
provided, however, that Tenant shall be responsible for the repair and
restoration of Tenant's improvements to the Demised Premises. Tenant shall
notify Landlord in advance of all repairs to be made by Tenant exceeding an
amount equal to $0.50 per rentable square feet of the Demised Premises in cost.
Tenant shall not remove blinds from windows. In making repairs, Tenant shall
observe and comply with all requirements, laws or regulations of any applicable
public authority and the terms and conditions of all insurance policies required
by Article XVI relating to or affecting the Real Estate.

            (b) Tenant shall be responsible and liable for all damages to the
Demised Premises the Building or the Land or any part thereof attributable to
the fault, negligence, or misuse of Tenant, its agents, employees, servants,
contractors, representatives, guests or invitees.

            Section 7.03. Approval by Landlord of Improvements:

            Tenant may not make, repairs, alterations, additions or improvements
to the Demised Premises, or any part thereof, without the prior written consent
of Landlord (which consent shall not be unreasonably withheld, denied or
conditioned, but which may, for purposes of clarification, be conditioned on
Tenant removing the same at the expiration of the Lease and restoring that
portion of the Demised Premises affected by the repairs, alterations, additions
and improvements, and the removal thereof, to the condition prior to any such
repairs, alterations, additions or improvements and otherwise in the condition
required under this Lease), if the reasonable cost of the specific alteration,
addition or improvement (any such alterations, additions and improvements being
aggregated for purposes of this calculation if made as part of the same general
plan) is estimated to exceed an amount equal to $0.50 per rentable square feet
of the Demised Premises; it being understood that the provisions of Article III
hereof shall govern the Tenant Work. Any permitted alterations shall be
performed in a good and workmanlike manner in accordance with all requirements
of any applicable governmental authority, the terms and conditions of all
required insurance policies and any other provisions relating to Tenant Work
herein contained. In no event shall Tenant make any alterations of the outside
dimensions of the Building or the existing load-bearing walls and columns,
exterior walls, roof, structural ceiling or foundations.

                                       14
<PAGE>
Notwithstanding anything contained in this Section 7.03, if the repairs,
alterations, additions or improvements involve an Atypical Alteration (as
defined below), Landlord reserves the right to require Tenant (by the end of the
Term) to restore that portion of the Demised Premises affected by the repairs,
alterations, additions and improvements, and the removal thereof, to the
condition prior to any such repairs, alterations, additions or improvements and
otherwise in the condition required under this Lease. An "Atypical Alteration"
means, collectively, any alterations, additions or improvements to the Demised
Premises which are not typical alterations, additions or improvements found in
similar, Class A office buildings occupied by more than one tenant, including by
way of illustration only and not of limitation, (i) any wet laboratories
installed by Tenant or (ii) anything which could materially adversely affect the
Robertson underfloor duct system installed in the Building.

            Section 7.04. Emergency Repairs:

            If, in an emergency, it shall become necessary to make any repairs
or replacements otherwise required to be made by Tenant, Landlord may enter the
Demised Premises, and proceed to make or cause such repairs or replacements to
be made at Tenant's expense. Landlord shall give Tenant telephone notice of such
emergency. Within thirty (30) days after Landlord renders a bill for such
repairs or replacements, Tenant shall reimburse Landlord for the cost of making
such repairs. Landlord's access and entry into the Demised Premises shall, to
the extent practicable under the circumstances, be conducted in a manner which
shall not unreasonably disrupt or unreasonably interfere with Tenant's use and
conduct of business within the Demised Premises.

            Section 7.05. Electrical Lines

            (a) Tenant may not install any electrical equipment that overloads
the lines in the Demised Premises, the Building or the Real Estate or which will
interfere with the use thereof by other tenants of the Building unless Landlord
approves same in the Plans and Specifications or as provided for in Section 7.03
above. If Tenant makes such installation, Landlord may require Tenant, at
Tenant's sole cost and expense, to make whatever alterations and/or repairs are
necessary and which are in compliance with the terms and conditions of all
required insurance policies and all requirements of applicable governmental
authorities. Tenant shall be responsible or liable for all damages anywhere in
the Building or with respect to the Real Estate caused by any electrical
overload attributable to Tenant.

            (b) At all times, Tenant shall provide access for Landlord to trench
headers provided that Landlord's work shall not prevent the conduct of Tenant's
business and shall be conducted at such times and in a manner so as to minimize
disruption of Tenant's operations.

                                       15
<PAGE>
            Section 7.06. Surrender of Premises.

            On the Expiration Date, Tenant shall quit and surrender the Demised
Premises together with all alterations, fixtures (except trade fixtures, it
being understood that, if Tenant removes trade fixtures, Tenant shall exercise
reasonable care in doing so, and the Demised Premises shall be restored to the
condition it was in prior to the installation of the trade fixtures, reasonable
wear and tear excepted), installations, additions and improvements which may
have been made in, annexed or otherwise attached thereto, broom clean, and in
good condition and repair, ordinary wear and tear excepted, and except for
damage by fire or other casualty which Landlord is required to repair hereunder,
unless Landlord provides otherwise in writing. Any personal property of Tenant,
or any subtenant or occupant, which shall remain in or on the Demised Premises
after the termination of this Lease and the removal of such Tenant, subtenant or
occupant from the Demised Premises, may, at the option of Landlord and without
notice, be deemed to have been abandoned by such Tenant, subtenant occupant, and
may either be retained by Landlord as its property or be disposed of, without
accountability, in such manner as Landlord may see fit. Tenant shall reimburse
Landlord for any cost or expense incurred by Landlord in carrying out the
foregoing which obligation shall survive the Expiration Date. Landlord shall not
be responsible for any loss or damage occurring to any such property owned by
Tenant or any subtenant or occupant.

            ARTICLE VIII. SERVICES AND UTILITIES

            Section 8.01. Landlord's Services:

            (a) Landlord shall furnish: (i) during Business Hours, heat and air
conditioning required for the occupancy of the Demised Premises and the
electricity to power same; (ii) ) twenty-four (24) hours per day, seven (7) days
per week access and elevator service including one weekend elevator; (iii)
restroom supplies; (iv) cleaning services as set forth in the "Building
Janitorial Specifications" (hereinafter so called), annexed hereto as Exhibit E,
on weekdays, excluding Holidays and weekends, (v) a cafeteria serving breakfast
and lunch, and (vi) such other services as Landlord may set forth from time to
time. Landlord shall have the right to reasonably modify the terms and/or
frequency of the services so long as Landlord gives at least five (5) days'
notice of any changes.

            (b) Tenant shall have the right to use the Demised Premises beyond
Business Hours and on weekends and Holidays upon the express condition that
Tenant shall be responsible, at its sole cost and expense, for any and all
building services required and attributable to such excess use charged at the
rates set forth in Landlord's Rules and Regulations; provided, however, that
notwithstanding anything contained in the Rules and Regulations or the
definition of Building Hours, in the event Landlord changes the Rules and
Regulations pursuant to this Lease so that more than eight (8) Holidays exist
(such additional Holidays being referred to as "Excess Holidays"), Tenant shall
not be charged for any excess use of building services during the period between
8:00 a.m. and 6:00 p.m. on any Excess Holiday unless Tenant is also treating the
Excess Holiday(s) as a business holiday. Payment for excess use of services
shall be deemed Rent and shall be paid to Landlord monthly, together with Base
Rent.

            (c) Landlord shall maintain and provide services for the Land and
Common Area, including lobbies, stairs, elevators, corridors, restrooms, and
Parking Area. Access to parking in the Parking Area shall be granted 4 cars per
each 1,000 rentable square feet (i.e., 51 cars for 12,807 rentable square feet).
Of the amount, Landlord will designate 5 spaces as "reserved" for Tenant.
Attached as Exhibit H are the designated locations for Tenant's "reserved"
parking spaces.

            (d) Landlord shall not be liable for any losses or damages caused by
interruption of services due to repair, inspection or causes beyond its
reasonable control. Tenant shall continue to be responsible for payment of Rent
during any period of such interruption. Landlord shall use its best efforts to
restore services after interruption. Notwithstanding the foregoing, if the
Demised Premises is rendered totally untenantable for five (5) consecutive
business days due to an interruption of services, the

                                       16
<PAGE>
Rent shall be abated during the period of such interruption of services unless
such interruption was caused by (i) Tenant, or (ii) by circumstances beyond
Landlord's reasonable control.

            (e) Landlord shall maintain a security guard situated in the
Building and/or another building within Connell Corporate Center servicing the
Building, twenty-four (24) hours per day, seven (7) days per week.

            Section 8.02. Electricity:

            (a) Landlord shall furnish the electricity Tenant shall require in
the Demised Premises for heating and air conditioning during Business Hours at
no extra cost (subject to adjustments under Section 5.03 or otherwise provided
herein). Tenant shall pay to Landlord, as a component of Rent, the sum of One
Dollar and Thirty-Five Cents ($1.35)/rentable sq. ft./yr. in advance on a
monthly basis together with Base Rent. This sum shall represent the cost of all
electricity furnished to Tenant at the Demised Premises during Business Hours,
other than for heating and air-conditioning, based on 5.5 watts/useable sq. ft.

            (b) If the Plans and Specifications submitted in connection with the
Tenant Work or any alterations or improvements undertaken by Tenant during the
Term anticipate extra electric usage based on either substantially greater needs
than 5.5 watts/useable sq. ft. or regular usage beyond the Building Business
Hours, the amount charged to Tenant as set forth in paragraph (a) above shall be
adjusted to reflect such additional usage.

            (c) The amount payable by Tenant as set forth in paragraph (a) above
may be adjusted when the rate charged Landlord by the local electric company is
modified between the execution of this Lease and the Commencement Date and
further adjusted from time to time to the reflect changes in the rate charged
Landlord subsequent to the Commencement Date.

            (d) Subsequent to Tenant's having taken occupancy and commenced use
of the Demised Premises, Landlord or Tenant may cause a survey to be made by an
independent electrical engineer or other qualified person of the estimated use
of electricity on the Demised Premises (other than for heat and air
conditioning). The $1.35/rentable sq. ft./yr. charge set forth in paragraph (a)
above shall be adjusted not more frequently than annually to reflect the outcome
of this survey. The cost of preparing the survey shall be included in Building
Operating Costs if undertaken by Landlord. Tenant shall pay for the survey if it
undertakes to cause same to be made.

            (e) If Landlord requests or if Tenant elects to do so, Tenant shall
install an electric meter to measure the electricity actually consumed on the
Demised Premises at any time, provided the local electric utility company so
permits. Tenant shall arrange with the utility company for such installation,
which shall be at Tenant's expense. Tenant shall pay for its electrical usage
based on metering to Landlord on a monthly basis together with Base Rent, at the
rate applicable to Landlord, in lieu of the charge set forth in paragraph (a)
above.

            (f) Landlord currently uses a certain utility company to provide
electricity service for the Real Estate (the "Current Electric Service
Provider"). Notwithstanding the foregoing, if permitted by applicable law,
Landlord shall have the right at any time and from time to time during the Term
of this Lease to either contract for services from a different company or
companies providing electricity service (each such company being referred to as
an "Alternate Service Provider") or continue to contract for service from the
Current Electric Service Provider. Tenant shall cooperate with Landlord, the
Current Electric Service Provider, and any Alternate Service Provider at all
times and, as reasonably necessary, shall allow Landlord, the Current Electric
Service Provider and any Alternate Service Provider reasonable access to the
Building's electric lines, feeders, risers, wiring, and any other machinery
within the Demised Premises.

                                       17
<PAGE>
                         ARTICLE IX. USE AND OPERATION

            Section 9.01. Use:

            Tenant shall use the Demised Premises for general offices and for no
other purpose (it being agreed that Tenant may install microwave and toaster
ovens (for the heating of food), refrigerators and vending machines in employee
break areas within the Demised Premises). Tenant shall comply with all
applicable zoning regulations or requirements and all other laws, rules,
regulations and ordinances of any governmental entity having jurisdiction over
the Real Estate (including, without limitation, Environmental Laws and
regulations), as well as all the requirements set forth in Article XXI.

            Section 9.02. Rules and Regulations Established by Landlord:

            The rules and regulations of the Landlord in effect as of this date
are set forth in Exhibit D annexed hereto. Tenant shall observe all such rules
and regulations, and all other rules and regulations established by Landlord
from time to time for the Building and the Real Estate (collectively, the "Rules
and Regulations"). Tenant shall be given at least five (5) days' notice of any
changes therein. In the event of any conflict between the terms of this Lease
and the Rules and Regulations (or any other Exhibit attached hereto), this Lease
shall control. The Rules and Regulations shall be of uniform application to
substantially all tenants of the Building, and shall not be enforced against
Tenant in a discriminatory manner.

            Section 9.03. Restriction on Tenant's Activities

            (a)   Garbage:

                        (i) Tenant shall handle and dispose of all rubbish and
                  garbage in accordance with the Rules and Regulations
                  established by Landlord.

                        (ii) Landlord shall provide rubbish and garbage removal
                  in accordance with the cleaning specifications incorporated as
                  part of Exhibit E.

                        (iii) Tenant shall arrange for the prompt removal of any
                  rubbish and garbage in excess of the quantity to be disposed
                  of by Landlord pursuant to the cleaning specifications set
                  forth in Exhibit E at Tenant's sole expense.

            (b) Plumbing Facility Use: Tenant shall not use the plumbing
facilities of the Demised Premises or the Building for any purpose other than
those for which they are intended. Tenant may not dispose of any substances
therein which may clog, erode or damage the pipelines and conduits of the
Demised Premises, the Building or the Land.

            (c) Floor Load: Tenant shall not install, operate of maintain in the
Demised Premises any heavy item of equipment which exceeds the floor load of one
hundred (100) pounds per square foot without Landlord's written consent.

            (d) Exterior Walls or Roof: Tenant shall not use all or any portion
of the roof or exterior walls of the Demised Premises or the Building for any
purpose.

            Section 9.04. Illegal Purposes:

            Tenant shall not use or permit the use of the Demised Premises for
any illegal trade, manufacture, or other business, or for any other illegal
purpose.

                                       18
<PAGE>
               ARTICLE X. TRANSFER OF INTEREST; PRIORITY OF LIEN.

            Section 10.01. Assignment, Subletting, etc,:

            (a) Tenant may sublet the Demised Premises or assign this Lease to
(i) its parent corporation or any affiliate or subsidiary of Tenant or (ii) any
successor of Tenant by merger or consolidation or the purchaser of all or
substantially all of Tenant's assets, in each case without Landlord's consent so
long as Tenant continues to be primarily liable and responsible for the
performance of all obligations under this Lease.

            (b) Except as expressly set forth in Section 10.01(a), Tenant shall
not sublet the Demised Premises or any part thereof, nor assign, transfer,
mortgage or hypothecate, or otherwise encumber this Lease or any interest
therein, nor grant concessions or licenses for the occupancy of the Demised
Premises or any part thereof to any unaffiliated company without Landlord's
prior written consent (which consent shall not be unreasonably withheld,
conditioned or delayed), and any unauthorized subletting, assignment, transfer
or other similar such action shall be deemed null and void and of no effect.
Upon the return of the Demised Premises, all terms and conditions of this Lease
shall be null and void, except for those provisions of the Lease which shall
survive the Expiration Date, as herein provided. Any subtenancy arrangement
without limiting the foregoing, shall be pursuant to a written agreement in form
and substance reasonably satisfactory to the Landlord containing terms not
inconsistent with the terms of this Lease.

            (c) Without limiting the foregoing, Landlord may, in its sole
determination, withhold approval to a transfer, assignment or subletting under
Paragraph (b) above, under the following conditions:

                  (i) The financial condition of the subtenant or other user is
unsatisfactory.

                  (ii) The proposed use of the Demised Premises by the subtenant
or other user would be prejudicial to the safety, character, or reputation of
the Building and its tenants or contrary to any zoning ordinance or law, rule,
regulatory or ordinance promulgated by any governmental authority.

                  (iii) The subtenant's or other user's occupancy of the Demised
Premises will cause excessive demands on the Real Estate.

                  (iv) Less than 90% of the rentable area of the Building is
rented.

            (d) Tenant shall remain primarily liable for all obligations of this
Lease in the event it sublets or assigns all or any portion of the Demised
Premises.

            (e) A subtenant or assignee shall not have the rights to renewal of
the Lease of the Demised Premises provided herein.

            (f) Any Excess Assignment Consideration (as defined below) or Excess
Sublease Rentals (as defined below) in connection with an assignment or sublease
permitted under this Lease shall be shared equally between Tenant and Landlord.
For purposes of this Section 10.01(f), (i) "Excess Assignment Consideration"
shall mean all consideration for the assignment paid or to be paid by the
assignee of Tenant to Tenant after deducting (A) actual out-of-pocket expenses
incurred by Tenant in connection with such assignment (including but not limited
to third party leasing commissions, concessions, outside attorneys' fees and
tenant improvements), (B) the then remaining unamortized portion of the cost of
the Tenant Work, amortized on a straight-line basis over the term of this Lease,
and (C) any consideration paid to Tenant by the assignee for Tenant's furniture
and equipment in the

                                       19
<PAGE>
Demised Premises (but not more than the fair market value of such furniture and
equipment) and (ii) "Excess Sublease Rentals" shall mean all consideration under
the sublease paid or to be paid by the sublessee of Tenant in excess of all Rent
paid or to be paid by the Tenant for the Demised Premises subleased for the same
period, after deducting (A) actual out-of-pocket expenses incurred by Tenant in
connection with such sublease (including but not limited to third party leasing
commissions, concessions, outside attorneys' fees and tenant improvements), ),
(B) the then remaining unamortized portion of the cost of the Tenant Work,
amortized on a straight-line basis over the term of this Lease, and (C) any
consideration paid to Tenant by the sublessee for. Tenant's furniture and
equipment in the Demised Premises (but not more than the fair market value of
such furniture and equipment); it being understood that if only a portion of the
Demised Premised are sublet, then only the portion of the space so sublet shall
be taken into account for purposes of such calculation.

            Section 10.02. Subordination:

            (a) Subject to Section 10.02(b) hereof, at Landlord's election, this
Lease shall be subordinate or superior to the lien of any present or future
mortgage irrespective of the time of recording of such mortgage. Landlord may
exercise such election by giving notice thereof to Tenant. At the election of
Landlord, this clause shall be self-operative and no further instrument shall be
required. Upon Landlord's request, at any time and from time to time (provided
that the Mortgagee shall have executed the agreement referenced in Section
10.02(b) hereof), Tenant shall (a) confirm in writing and in recordable form
that this Lease is so subordinate or so paramount to the lien of any mortgage
and/or (b) execute an instrument making this Lease so subordinate or so
paramount (as Landlord may elect) to the lien of any mortgage, in such form as
may be required by an applicable mortgagee. The exercise of any of the elections
provided in this Section shall not exhaust Landlord's right to elect differently
thereafter, from time to time.

            (b) Landlord shall obtain from any Mortgagee a non-disturbance
agreement in favor of the Tenant which recognizes this Lease and agrees not to
disturb Tenant's possession of the Demised Premises as provided in this Lease,
in each case for so long as the Tenant is not in default under this Lease, and
provided the Tenant agrees to attorn to the said Mortgagee in the event it comes
into possession of the premises.

            (c) Landlord shall endeavor to obtain the following provisions in
any such non-disturbance agreement: (i) such mortgagee or ground lessor shall
honor this Lease in accordance with its terms; (ii) such mortgagee or ground
lessor shall not name Tenant in any foreclosure proceedings; and (iii) such
mortgagee or ground lessor shall cause Landlord's obligations under this Lease
to be performed from and after the date of any foreclosure, purchase or
transfer.

            (d) Landlord shall have the right to assign Tenant's Rent payments
to any Mortgagee. Upon prior written notice from Landlord, Tenant shall make
payments directly to such assignee.

            (e) Landlord represents and warrants that as of the date hereof,
there is no mortgage on the Real Estate.

            Section 10.03. Attornment:

            If the Demised Premises, the Building or the Land are encumbered by
a Mortgage and such Mortgage is foreclosed, or if same are sold pursuant to such
foreclosure or by reason of a default under said Mortgage, (a) Tenant shall not
disaffirm this Lease or any of its obligations hereunder, and (b) at the request
of the applicable Mortgagee or purchaser at such foreclosure or sale, Tenant
shall attorn to such Mortgagee or purchaser.

            Section 10.04. Transfer of Landlord's Interest:

                                       20
<PAGE>
            The term "Landlord" as used in this Lease means only the owner or
the mortgagee in possession of the Demises Premises, the Building or the Real
Estate for the time being. In the event of any sale (including any
sale-leaseback) of the Demises Premises, the Building or the Real Estate,
Landlord shall be and hereby is entirely freed and relieved of all of its
covenants, obligations and liability hereunder, provided the transferee assumes
all of Landlord's obligations hereunder. This subsection shall be applicable to
each owner from time to time, and shall not be limited to the first owner of the
Demised Premises, the Building or the Real Estate.

            Section 10.05. Mortgagee's Rights:

            If Landlord shall notify Tenant that the Demised Premises, the
Building or the Land are encumbered by a Mortgage and in such notice set forth
the name and address of the Mortgagee thereof, then, notwithstanding anything to
the contrary contained herein, no notice intended for Landlord shall be deemed
properly given unless a copy thereof is simultaneously sent to such Mortgagee by
certified or registered mail, return receipt requested. If any Mortgagee shall
perform any obligation that Landlord is required to perform hereunder, such
performance by Mortgagee, insofar as Tenant is concerned, shall be deemed
performance on behalf of Landlord and shall be accepted by Tenant as if
performed by Landlord.

                            ARTICLE XI. COMMON AREA

            Section 11.01. Use of Common Area:

            During the Term, the following rights to use certain portions of the
Real Estate in common with Landlord and any designee of Landlord, subject to the
terms of this Lease and Landlord's Rules and Regulations, are hereby granted to
Tenant:

            (a) the non-exclusive right to permit its employees, agents and
invitees to use the Common Area as defined under 2.01; and

            (b) the non-exclusive right to permit its employees, agents and
invitees to use the entrance and exit ways designated by Landlord from time to
time for access to the Demised Premises from a public street or highway adjacent
to the Real Estate through the appropriate entrances and exits so designated.

            Section 11.02. Landlord's Rights:

            Notwithstanding anything to the contrary contained herein, Landlord
shall have the right:

            (a) to close all or any portion of the Common Area including the
Parking Area to such extent as may, in the opinion of Landlord's counsel, be
necessary to prevent a dedication thereof or the accrual of any rights of any
person or the public therein;

            (b) to close all or any portion of the Common Area;

            (c) to prohibit parking or passage of motor vehicles in areas
previously designated for such and to change the location of exclusively marked
parking spaces provided Landlord provides substitute parking, if required, and
provided that such action does not unreasonably interfere with Tenant's access
or ability to conduct business in the Demised Premises;

            (d) to temporarily close any of the Common Area for repair,
maintenance, alteration or improvements;

                                       21
<PAGE>
            (e) to build additions to the Building or erect additional buildings
on the Common Area or the Land;

            (f) to create paths, walks or other means of cross access through
the Land.

            Section 11.03. License Numbers:

            In order to restrict the use by Tenant's employees of areas
designated or which may be designated by Landlord as handicapped, reserved or
restricted Parking Areas, Tenant agrees that it will, at any time requested by
Landlord, furnish Landlord with the License numbers of any vehicle of Tenant and
Tenant's employees or agents.

            Section 11.04. Landlord's Obligation with Respect to Parking Area

            Throughout the Term, Landlord shall keep the Parking Area properly
paved and in good order and repair, properly drained and shall provide painted
stripes to designated parking spaces. After the end of a snowfall, Landlord will
commence to remove accumulated snow and ice from the Parking Area and diligently
prosecute the same to completion so that, to the extent practicable, the Parking
Area shall be reasonably free of snow and ice. Landlord may deposit accumulated
snow on such portions of the Common Area as may be necessary under the
circumstances. If any ice cannot be removed with reasonable effort on the part
of Landlord, it will be sufficient for Landlord to spread sand and other
abrasive substances over the ice.

                      ARTICLE XII. DESTRUCTION OR DAMAGE.

            Section 12.01. Rent Abatement:

            If the Demised Premises shall be partially damaged or destroyed by
fire or other casualty not attributable to the fault, negligence or misuse of
Tenant, its agents or employees, the Rent payable hereunder shall be abated to
the extent that the Demised Premises shall have been rendered untenantable and
for the period from the date of such damage or destruction to the date the
Demised Premises is rendered tenantable. Should tenant reoccupy a portion of the
Demised Premises during the period any restoration work is taking place and
prior to the date same is made completely tenantable, Rent allocable to such
portion shall be payable by Tenant from the date of such partial occupancy.

            Section 12.02. Option to Terminate:

            If the Building or the Demised Premises shall be damaged or
destroyed by fire or other casualty (in the former case, whether or not the
Demised Premises are damaged or destroyed) so as to require an expenditure in
Landlord's reasonable opinion of more than 40% of the full insurable value
(determined prior to the casualty) of the Building or Demised Premises as the
case may be, then in either such case, Landlord may terminate this Lease by
giving Tenant written notice within ninety (90) days after the date of the
casualty, specifying the date of termination of this Lease. In such event,
Tenant shall forthwith quit, surrender and vacate the premises without
prejudice, however, to Landlord's rights and remedies against Tenant (or any
rights or remedies which Tenant may have against Landlord which are expressly
set forth in this Lease) as of the date of termination or as to those rights
which survive such termination. In the event of termination, the Rent payable
hereunder shall be abated from the date of damage or destruction. If Landlord's
estimate (which estimate shall be given no later than thirty (30) days following
the date of the damage or destruction) of the time required to repair the
Demised Premises (so that Tenant can reasonably conduct its business therein)
exceeds twelve (12) months from the date of such damage or destruction, Tenant
shall have the right to terminate this Lease by giving written notice to
Landlord within thirty (30) days after receipt of the Landlord's estimate. If
Tenant exercises such termination right, the Lease shall terminate on the date
specified in the termination notice

                                       22
<PAGE>
(without prejudice, however, to Landlord's rights and remedies against Tenant
(or any rights or remedies which Tenant may have against Landlord which are
expressly set forth in this Lease) as of the date of termination or as to those
rights which survive such termination).

            Section 12.03. Landlord's Obligation to Rebuild:

            If all or any portion of the Demised Premises or access thereto is
damaged by fire or other casualty and if Landlord (or, to the extent provided in
Section 12.02 hereof, Tenant) has not elected to terminate this Lease, Landlord
shall, within a reasonable time after such occurrence, repair or rebuild the
Demised Premises, such portion or access thereto to its condition immediately
prior to the Commencement Date. Tenant may terminate this Lease by giving
written notice to Landlord, if Landlord has not commenced the required repairs
within one hundred twenty (120) days or has not restored and rebuilt the Demised
Premises as herein provided within twelve (12) months from the date of such
damage or destruction and such delay is due to Landlord's fault. Landlord shall
not be obligated to expend in such repair or rebuilding any sums greater than
the proceeds of any insurance policy carried by Landlord or for Landlord's
benefit.

            Section 12.04. Landlord's Liability:

            Landlord shall not be obligated to pay any damages, compensation or
claim for inconvenience, loss of business or annoyance arising from any
casualty, or repair or restoration of any portion of the Demised Premises or of
the Building pursuant to this Article.

                          ARTICLE XIII. CONDEMNATION.

            Section 13.01. Definitions:

            As used herein, the following words have the following meanings:

            (a) Taking: The deprivation of or damage to the Demised Premises,
the Building or the Land or any portion thereof, as the result of the exercise
by a governmental authority of any power of eminent domain, condemnation, or the
purchase by purchaser under threat thereof.

            (b) Taking Date: With respect to any Taking, the date on which the
condemning authority or purchaser under threat shall have the right to
possession of the Demised Premises, the Building or the Land or any portion
thereof.

            (c) Award: The proceeds of any Taking, less all expense in
connection therewith, including reasonable attorneys' fees.

            Section 13.02. Taking of Demised Premises:

            (a) In the event of a Taking of the whole of the Building, Land or
Demised Premises, other than a Taking for temporary use, this Lease shall
automatically terminate as of the Taking Date.

            (b) In the event of a Taking of 40% of the Building, 40% of the Land
or 50% of the Demised Premises, Landlord, at its sole option, may terminate this
Lease by giving written notice to the other party anytime between the period
three (3) months prior to the Taking Date and three months after such date. The
termination of the Lease shall be effective three months after such notice is
received. In the event of a Taking of 50% of the Demised Premises or 50% of the
Building which in Tenant's reasonable judgment materially interferes with
Tenant's ability to conduct its business in the Demised Premises, or
substantially denies or interferes with Tenant's access to the Building or
Demised Premises, Tenant shall have the right to terminate this Lease by giving
Landlord written notice of its election

                                       23

<PAGE>
within thirty (30) days of the Taking. This Lease shall terminate on the earlier
of the Taking Date or three (3) months following Tenant's written notice.

            Section 13.03. Taking for Temporary Use:

            If there is a Taking of the Demised Premises for temporary use, this
Lease shall continue in full force and effect, and Tenant shall continue to
comply with all the provisions thereof, except as such compliance shall be
rendered impossible or impracticable by reason of such Taking. Rent shall be
abated during the course of such Taking to the extent and for the period of time
that the Demised Premises shall have been rendered untenantable.

            Section 13.04. Disposition of Awards:

            All Awards shall belong to Landlord without any participation by
Tenant; provided, however, that Tenant shall be entitled to any identifiable
award for Tenant's furniture, fixtures, moving expenses and the unamortized
value of Tenant Work, in each case in connection with such Taking.

                        ARTICLE XIV. TENANT'S INSURANCE.

            Section 14.01. General Insurance:

            (a) At all times during the Term of this Lease, Tenant shall carry
and maintain, at Tenant's expense, the insurance required hereunder, in the
amounts specified in this Article or such other amounts and in form and
substance as Landlord may from time to time reasonably request, issued by an
insurance company reasonably satisfactory to Landlord. Upon the execution of
this Lease, and from time to time as requested by Landlord, Tenant shall deliver
to Landlord certificates of all insurance policies required to be carried
hereunder with evidence of payment of applicable premium. All policies shall
name Landlord and all mortgagees, as additional insureds.

            (b) Each policy so issued shall expressly provide: (i) that it may
not be cancelled for nonpayment, or for other reason without thirty (30) days'
advance written notice to Landlord; (ii) that the insurance company shall not
fail to renew the policy without thirty (30) days' advance written notice to
Landlord; (iii) that no material change may be made in the policy; and (iv) that
it is not subject to invalidation as to Landlord's interest by reason of any act
or omission of Tenant.

            (c) The term "insurance policy" shall include any extensions or
renewals of such insurance policy.

            (d) Landlord shall keep in force during the Term "all risk" casualty
insurance covering the Building in an amount not less than fifty percent (50%)
of the replacement value of the Building with such deductibles and with such
coverage exclusions as Landlord deems reasonable. Any insurance required by the
preceding sentence shall be (A) with Landlord's insurer so long as Landlord is
The Connell Company or an affiliate of The Connell Company; otherwise the
insurance shall be issued by a recognized and reputable insurance company and
(B) only required if and to the extent that such insurance is available to
owners of commercial office properties at commercially reasonable rates. Without
limiting the foregoing, Landlord shall maintain insurance coverage for the
Building and Land as it deems necessary, and Tenant shall not do or permit to be
done any act or thing upon the Real Estate which would (i) jeopardize or be in
conflict with fire insurance policies covering the Building and fixtures and
property on the Land, (ii) increase the rate of fire or other casualty insurance
applicable to the Real Estate to a rate higher than it otherwise would be for
general office use of the Building, or (iii) subject Landlord to any liability
or responsibility for injury to any person or persons or to property by reason
of any business or operation Tenant carries on upon the Real Estate.

          Section 14.02. Tenant Liability Insurance:

                                       24
<PAGE>
            Tenant shall provide on or before it enters the Demised Premises for
any reason and shall keep in force during the Term for the benefit of Landlord
and Tenant, liability insurance naming Landlord and any designee of Landlord as
additional insureds. The policy shall protect Landlord, Tenant and any designee
of Landlord against any liability occasioned by any occurrence on or about the
Demised Premises or any appurtenance thereto or arising from any of the items
indicated in Section 15.01 against which Tenant is required to indemnify
Landlord. Such policy is to be written in a combined single limit of at least
$3,000,000.00 for injury or death to one or more than one person arising from
any one occurrence and in the amount of $1,000,000.00 with respect to property
damages. In addition, Tenant shall maintain and provide a $10,000,000.00,
umbrella policy on terms Landlord specifies.

            Section 14.03. Tenant Fire Insurance:

            Tenant shall insure and keep its equipment, personal property and
all leasehold improvements benefiting the Demised Premises or elsewhere on the
Real Estate insured against damage by fire, water and other casualties and risks
covered by "All Risk" and extended coverage insurance. Landlord will not carry
insurance of any kind on Tenant's equipment or personal property, and, except as
provided by law or by reason of its fault or its breach of any of its
obligations hereunder, shall not be obligated to repair any damage thereto or
replace the same.

            Section 14.04. Tenant Worker's Compensation Insurance:

            Tenant shall maintain worker's compensation insurance insuring
against and satisfying Tenant's obligations and liabilities under the applicable
worker's compensation laws.

            Section 14.05. Other Tenant Insurance:

            Tenant shall carry insurance against such other hazards and in such
amounts as may be customarily carried by tenants of similar properties, as
Landlord may reasonably require for its protection from time to time.

            Section 14.06. Waiver of Subrogation:

            Landlord and Tenant each hereby releases the other, its officers,
directors, employees and agents from liability or responsibility (to the other
or anyone claiming through or under them by way of subrogation or otherwise) for
any loss or damage to property covered by valid and collectible fire insurance
policy with standard extended coverage endorsement, even if such loss or damage
shall have been caused by the fault or negligence of the other party, or anyone
for, whom such party may be responsible to the extent of insurance proceeds.
Landlord and Tenant each agrees that any fire and extended coverage insurance
policies carried by each of them respectively and covering the Demised Premises
or their contents will include such a clause or endorsement.

            Section 14.07. Insurance Rate:

            If, as a result of (a) any act or omission by Tenant or violation of
any terms of this Lease; (b) the use to which Tenant has put Demised Premises;
or (c) Tenant's failure to comply with Landlord's insurance requirements,
Landlord's insurance rates applicable to the Real Estate are raised, Tenant
shall reimburse Landlord, on demand, for the increased cost of Landlord's
insurance premiums, which comprise part of Rent. For the purposes of this
Section, any finding or schedule of the fire insurance rating organization
having jurisdiction over the Real Estate shall be deemed to be conclusive.

            Section 14.08. Toxic and Hazardous Materials:

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<PAGE>
            (a) Tenant will not store, use, generate, manufacture, produce,
release, discharge or dispose of any toxic materials or Hazardous Materials in,
on, or about the Demised Premises or the Real Estate (provided that Tenant shall
not be in violation of the foregoing by its use and storage of standard office
products otherwise defined as hazardous, which products are used by Tenant with
due care and in accordance with the instructions of the product manufacturer and
otherwise in compliance with applicable law, in the reasonable and prudent
conduct of Tenant's business). Tenant will be solely responsible for and will
defend, indemnify and hold Indemnified Parties (as defined in Section 15.01(a)
of this Lease) from and against all claims, judgments, actions, costs,
penalties, damages and liabilities, including attorneys' fees and costs, arising
out of or in connection with Tenant's (and its agents') storage, use and
disposal of toxic materials and Hazardous Materials. Tenant will be solely
responsible for and will defend, indemnify and hold Indemnified Parties harmless
from and against any and all claims, costs and liabilities, including attorneys'
fees and costs, arising out of or in connection with the removal, clean-up and
restoration work and materials necessary to return the Demised Premises and any
other property of whatever nature located on the Real Estate to the condition
existing prior to such storage, use, generation, manufacture, production,
release, discharge or disposal of toxic materials or Hazardous Materials.
Tenant's obligations under this Section will survive the termination of this
Lease.

            (b) For purposes of this Lease, the term "Hazardous Materials"
includes without limitation: (a) those substances included within the
definitions of "hazardous substances," "hazardous materials," "toxic
substances," "hazardous wastes," "solid waste" or similar terms in any
Environmental Law; (b) petroleum products and petroleum byproducts; (c)
polychlorinated biphenyls; and (d) chlorinated solvents. The term "Environmental
Law" includes any federal, state, municipal or local law, statute, ordinance,
regulation, order, rule or requirement (in each case as may be amended from time
to time) pertaining to health, industrial hygiene, environmental conditions
(including, without limitation, air, ground, water pollution and protection
and/or preservation of the environment), or hazardous materials or substances.

            (c) Landlord represents and warrants that, to the best of its
knowledge, as of the date hereof, there are no Hazardous Materials (other than
standard office products and construction materials otherwise defined as
hazardous which are used in compliance with applicable law) located on the Real
Estate. Landlord agrees that it will not use, generate, manufacture, produce,
store, release, discharge or dispose of Hazardous Materials in, on, under or
about the Demised Premises, the Building or Real Estate, other than in
compliance with applicable law.

            (d) Landlord will hold harmless, indemnify, and defend Tenant
Parties (as defined in Section 15.01(b) hereof) from and against all claims,
judgments, actions, costs, penalties, damages and liabilities, including
reasonable attorneys' fees and costs, to the extent arising out of or in
connection with (i) the presence of toxic materials and Hazardous Materials on
the Real Estate prior to the date hereof and (ii) Landlord's (and its agents')
storage, use, generation, manufacture, production, release, discharge and
disposal of toxic materials and Hazardous Materials (including any removal,
clean-up or restoration work in connection therewith) in, on, under or about the
Demised Premises, the Building or the Real Estate.

                   ARTICLE XV. INDEMNIFICATION AND LIABILITY

            Section 15.01. Indemnification

            (a) Tenant hereby indemnifies and agrees to defend and hold
Landlord, its affiliates and each of their respective shareholders, officials,
directors, employees, representatives, servants and agents, and any Mortgagee
(each, an "Indemnified Party", and collectively, the "Indemnified Parties")
harmless from and against any and all claims, suits, proceedings, fees,
penalties, actions, causes of action, responsibilities, liabilities, payments,
demands and expenses (including attorneys' fees and disbursements) of any nature
whatsoever relating to or arising from:

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<PAGE>
                        (i) Tenant's possession, use, occupation, management,
            repair, maintenance, or control of the Demised Premises, the
            Building or the Land, or any portion thereof (including, without
            limitation, with respect to any Tenant Work);

                        (ii) any act, omission or negligence of Tenant, Tenant's
            employees, agents, invitees or visitors;

                        (iii) any default, breach, violation or nonperformance
            of this Lease or any provision therein by Tenant;

                        (iv) injury or damages to person(s) or property or loss
            of life sustained in or about the Demised Premises.

The indemnity under this Section 15.01(a) shall not apply to claims, suits,
proceedings, actions, or liabilities to the extent they are caused by the gross
negligence or willful misconduct of Landlord. Tenant shall defend any actions,
suits and proceedings which may be brought against any Indemnified Party with
respect to the foregoing or in which they may be impleaded. Tenant shall pay,
satisfy and discharge any judgments, orders and decrees which may be recovered
against any Indemnified Party in connection with the foregoing.

            (b) Landlord hereby indemnifies and agrees to defend and hold
Tenant, its affiliates and each of their respective shareholders, officials,
directors, employees, representatives, servants and agents (each, a "Tenant
Party", and collectively, the "Tenant Parties") harmless from and against any
and all claims, suits, proceedings, fees, penalties, actions, causes of action,
responsibilities, liabilities, payments, demands and expenses (including
reasonable attorneys' fees and disbursements) of any nature whatsoever to the
extent relating to or arising from the gross negligence or willful misconduct of
Landlord in connection with this Lease. Landlord shall defend any actions, suits
and proceedings which may be brought against any Tenant Party with respect to
the foregoing or in which they may be impleaded. Landlord shall pay, satisfy and
discharge any judgments, orders and decrees which may be recovered against any
Tenant Party in connection with the foregoing.

            (b) The rights to indemnification set forth in this Section 15.01
shall be in addition to and not in lieu of any other rights to indemnification
set forth in this Lease, and shall survive the Expiration Date or other
termination hereof. Landlord (on behalf of itself and any applicable Indemnified
Party) shall notify Tenant of any claims for which Landlord seeks
indemnification pursuant to this Section 15.01. Tenant (on behalf of itself and
any applicable Tenant Party) shall notify Landlord of any claims for which
Tenant seeks indemnification pursuant to this Section 15.01. Notwithstanding
anything to the contrary herein, any indemnification in this Lease is subject to
the waiver of subrogation provisions set forth in this Lease, to the extent any
such waiver of subrogation provision is applicable thereto.

            Section 15.02. Waiver and Release:

            Tenant hereby waives and releases all claims against Landlord with
respect to all matters for which Landlord has disclaimed liability pursuant to
the provisions of this Lease.

            Section 15.03. Liability of Landlord:

            (a) Neither Landlord nor any agent or employee of Landlord shall be
liable to Tenant for (i) any injury or damage to Tenant or to any other person
or (ii) any damage to, or loss (by theft or otherwise) of, any property of
Tenant or any other person, irrespective of the cause of such injury, damage, or
loss, except to the extent caused by or due to the willful misconduct or gross
negligence of Landlord, its agents or employees.

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<PAGE>
            (b) Landlord, and (in case Landlord shall be a joint venture,
partnership, tenancy-in-common, association or other form of joint ownership)
the members of any joint venture, partnership, tenancy-in-common, association or
other form of joint ownership shall have absolutely no personal liability with
respect to any provision of this Lease, or any obligation or liability arising
therefrom or in connection therewith. Tenant shall look solely to the equity of
the owner in the Real Estate or to any insurance which Landlord is obligated to
provided under the terms of this Lease for the satisfaction of any remedies of
Tenant in the event of a breach by Landlord of any of its obligations. Such
exculpation of liability shall be absolute and without any exception whatsoever.

            (c) All property (whether real, personal or mixed) at any time
located in or upon the Demised Premises shall be at the risk of Tenant only, and
Landlord shall not become liable for any damage to said property or to Tenant,
or to any other property, caused by water, leakage, steam, sewerage, gas or
odors or for any damage whatsoever done or occasioned by or from any boiler,
plumbing, gas, water, steam or other pipes, or any fixtures or equipment or
appurtenances whatsoever, or for any damage arising from any act or neglect or
arising by reason of the use of, or any defect in, the Demised Premises or any
of the fixtures, equipment or appurtenances therein contained, or by the Act or
neglect of any other person or caused in any other manner whatsoever or
occasioned by theft, Act of God, riot, strike or other labor difficulty, except
to the extent caused by or due to the willful misconduct or gross negligence of
Landlord, its agents or employees.

            (d) Except as otherwise expressly provided herein, this Lease and
the obligations of Tenant hereunder shall be in no way affected, impaired or
excused because Landlord is unable to fulfill, or is delayed in fulfilling, any
of its obligations under this Lease.

                        ARTICLE XVI. DEFAULT; REMEDIES.

            Section 16.01. Default:

            Each of the following shall constitute an Event of Default:

            (a) the filing by tenant of a bankruptcy petition, or the
            commencement of a proceeding under the insolvency laws of any State
            naming Tenant as the debtor;

            (b) the filing by anyone other than Tenant of a bankruptcy petition
            or a proceeding under the insolvency laws of any State naming Tenant
            as the debtor, which case shall not have been discharged within 30
            days of the commencement thereof;

            (c) the making by Tenant of any assignment for the benefit of
            creditors or any other arrangement involving all or substantially
            all of its assets under any state statute;

            (d) the appointment of a receiver or trustee for the Tenant or for
            all or any portion of the property of Tenant in any proceeding,
            which receivership shall not have been set aside within 30 days of
            such appointment;

            (e) the failure of Tenant to pay (i) any Base Rent when the same
            shall become due and payable; provided, however, that, with respect
            to the first one (1) time in any twelve month period during the Term
            in which Tenant fails to pay Base Rent when due and payable, such
            failure to pay shall not constitute an Event of Default under this
            clause (e) until such failure to

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<PAGE>
            pay continues for a period of five (5) days after written notice
            thereof from Landlord to Tenant, or (ii) any other Rent or other
            charge required to be paid by Tenant hereunder (other than Base
            Rent, in which case clause (i) is applicable) when the same shall
            become due and payable and continues to be unpaid for a period of
            five (5) days after written notice thereof from Landlord to Tenant;

            (f) the Letter of Credit shall for any reason whatsoever cease to be
            in full force and effect (or Tenant shall otherwise be in breach of
            Section 1.04 hereof), or the Letter of Credit Provider (or any party
            on behalf of the Letter of Credit Provider) shall contest the
            obligation to pay under the Letter of Credit in accordance with its
            terms; and

            (g) the failure by Tenant to perform or observe any requirement of
            this Lease not specifically referred to in this Section, and such
            failure continuing for twenty (20) days after written notice from
            Landlord to Tenant specifying the items in default; provided
            however, that if the failure requires more than twenty (20) days to
            cure, is capable of being cured, and so long as Tenant is
            prosecuting the cure to completion with due diligence, Tenant shall
            be permitted an additional thirty (30) days to cure before such
            failure constitutes and Event of Default.

            Section 16.02. Landlord's Remedy:

            At any time after the occurrence of an Event of Default, Landlord
may give written notice to Tenant specifying such Event(s) of Default and
stating that the Lease and Term shall terminate five (5) days after the giving
of such written notice. At the expiration of such five days, this Lease and the
Term and all of the right, title and interest of Tenant hereunder shall wholly
cease and expire, and Tenant shall quit and surrender the Demised Premises to
Landlord. Notwithstanding such termination, surrender, and the expiration of
Tenant's right, title, and interest, Tenant's liability and responsibility under
all of the provisions of this Lease shall continue.

            Section 16.03. Landlord's Re-Entry

            If this Lease shall be terminated as provided in Section 16.02,
above, Landlord, or its agents or employees, may re-enter the Demised Premises
at any time and remove therefrom Tenant, Tenant's Agents, and any subtenants,
licensees, concessionaires or invitees, together with any of its or their
property, either by summary dispossession proceedings or by any suitable action
or proceeding at law or otherwise. In the event of such termination, Landlord
may repossess and enjoy the Demised Premises. Landlord shall be entitled to the
benefits of all provisions of law respecting the speedy recovery of lands and
tenements, or proceedings in forcible entry and detainer. Landlord shall not be
liable in any way in connection with any action it takes pursuant to the
foregoing. Notwithstanding any such re-entry, repossession, dispossession or
removal, Tenant's liability and responsibility under all of the provisions of
this Lease shall continue.

            Section 16.04. Landlord's Additional Remedies:

(a) In case of re-entry, repossession or termination of this Lease, whether the
same is the result of the institution of summary or other proceedings, Tenant
shall remain liable (in addition to accrued liabilities) to the extent legally
permissible for: (i) the Rent, and all other charges provided for herein until
the date this Lease would have expired had such termination, re-entry or
repossession not occurred; and all expenses which Landlord may have incurred in
re-entering the Demised Premises, repossessing the same; making good any Event
of Default; painting, altering or dividing the Demised Premises; combining or
placing the same in proper repair; protecting and preserving the same by placing
therein watchmen and caretakers; re-letting the same (including attorneys' fees
and disbursements,

                                       29
<PAGE>
marshall's fees, brokerage fees, in so doing); and any expenses which Landlord
may incur during the occupancy of any new tenant; less (ii) the net proceeds of
any re-letting. Tenant agrees to pay to Landlord the difference between items
(1) and (ii) hereinabove with respect to each month, at the end of such month.
Any suit brought by Landlord to enforce collection of such difference for any
one month shall not prejudice Landlord's right to enforce the collection of any
difference for any subsequent month. In addition to the foregoing, Tenant shall
pay to Landlord such sums as the court may adjudge reasonable as attorneys' fees
with respect to any successful lawsuit or action instituted by Landlord to
enforce the provisions hereof.

            (b) Landlord may re-lease the whole or any part of the Demised
Premises for the whole of the unexpired period of this Lease, or longer, or from
time to time for shorter periods, for any rental then obtainable, giving such
concessions of rent and making such special repairs, alterations, decorations
and paintings for any new tenant as it may in its sole and absolute discretion
deem advisable and may collect and receive the rents therefor. Landlord shall
use reasonable efforts to re-lease or to attempt to re-let the Demised Premises
on reasonable terms to mitigate its damage.

            Section 16.05. Agreed Final Damages:

In the event of the occurrence of an Event of Default, if Landlord so elects,
Tenant shall pay Landlord, on demand, as liquidated and agreed final damages,
the net present value of all Base Rent which would have been payable by Tenant
from the date of such demand to the date when this Lease would have expired if
it had not been terminated as aforesaid. Such net present value shall be
computed using a discount rate equal to the federal funds rate in effect at such
time. Upon payment of such liquidated and agreed final damages, Tenant shall be
under no further liability with respect to the period after the date of such
demand.

            Section 16.06. Waiver of Right of Redemption:

            Tenant hereby expressly waives (to the extent legally permissible),
for itself and all persons claiming by, through, or under it, any right of
redemption or for the restoration of the operation of this Lease under any
present or future law in case Tenant shall be dispossessed for any cause, or in
case Landlord shall obtain possession of the Demised Premises as herein
provided.

            Section 16.07. Landlord's Right to Perform for Account of Tenant;
Letter of Credit:

            If an Event of Default shall occur hereunder, Landlord may, at any
time, cure said Event of Default for the account and at the expense of Tenant.
Tenant shall pay, on demand, to Landlord, with interest as required by Section
20.09 hereof, the amount so paid, expended, or incurred by Landlord and any
expense of Landlord, including reasonable attorneys' fees, incurred in
connection with such Event of Default; and all of the same shall be deemed to be
Additional Rent. If an Event of Default shall occur hereunder, without limiting
any other remedy Landlord otherwise may have under this Lease, Landlord shall be
entitled to draw upon all or any portion of the Letter of Credit in order to
satisfy any obligations of Tenant owing under this Lease.

            Section 16.08. Additional Remedies, Waivers, etc.:

            With respect to the rights and remedies of and waivers by Landlord:

            (a) The rights and remedies of Landlord set forth herein shall be in
addition to any other right and remedy now and hereafter provided by law. All
such rights and remedies shall be cumulative and not exclusive of each other.
Landlord may exercise such rights and remedies at such times, in such order, to
such extent, and as often as Landlord deems advisable without regard to whether
the exercise of one right or remedy proceeds, concurs with or succeeds the
exercise of another.

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<PAGE>
            (b) A single or partial exercise of a right or remedy shall not
preclude (i) a further exercise thereof, or (ii) the exercise of another right
or remedy, from time to time.

            (c) No delay or omission by Landlord in exercising a right or remedy
shall exhaust or impair the same or constitute a waiver of, or acquiescence to
an Event of Default.

            (d) No waiver of an Event of Default shall extend to or affect any
other Event of Default or impair any right or remedy with respect thereto.

            (e) No action or inaction by Landlord shall constitute a waiver of
an Event of Default.

            (f) No waiver of an Event of Default shall be effective unless it is
in writing and signed by Landlord.

                  ARTICLE XVII. TENANT'S ESTOPPEL CERTIFICATE

            At any time within thirty (30) days after written request by
Landlord, Tenant shall certify to Landlord, any mortgagee, assignee of a
mortgagee, any purchaser, or any other person, specified by Landlord, by written
instrument, duly executed and acknowledged, (a) whether or not Tenant is in
possession of the Demised Premises; (b) whether or not this Lease is unmodified
and in full force and effect (or if there has been modification, that the same
is in full force and effect as modified and setting forth such modification);
(c) whether or not, to Tenant's knowledge, there are then existing set-offs or
defenses against the enforcement of any right or remedy of Landlord, or any duty
or obligation of Tenant (and if so, specifying the same); (d) the dates, if any,
to which any Rent or other charges have been paid in advance; and (e) such other
factual matters relating to this Lease as may be reasonably requested by
Landlord, any mortgagee or any of their designees.

            At any time within thirty (30) days after written request by Tenant,
Landlord shall certify to Tenant or any other person reasonably specified by
Tenant, by written instrument, duly executed and acknowledged, (a) whether or
not this Lease is unmodified and in full force and effect (or if there has been
modification, that the same is in full force and effect as modified and setting
forth such modification); (b) whether or not, to Landlord's knowledge, Tenant is
in default under the Lease; and (c) such other factual matters relating to this
Lease as may be reasonably requested by Tenant.

                         ARTICLE XVIII. RIGHT OF ACCESS

            Landlord, its employees, agents, representatives, may enter upon the
Demised Premises, or any portion thereof (with people and materials, if
required), with reasonable prior notice to Tenant and at reasonable times and
intervals and so as to not unreasonably disrupt or interfere with Tenant's use
and conduct of business within the Demised Premises, for the purpose of: (a)
inspecting same; (b) making such repairs, replacements or alterations which it
may be required to perform as herein provided or which it may deem desirable for
the Demised Premises; and (c) showing the Demised Premises to prospective
purchasers or lessees.

                   ARTICLE XIX. COVENANT OF QUIET ENJOYMENT.

            Landlord covenants that if Tenant pays the Rent and all other fees,
charges and expenses provided for herein in a timely manner as and when due,
duly performs all of its other obligations provided for hereunder, and observes
all of the other provisions hereof, Tenant shall, at all times during

                                       31
<PAGE>
the Term, peaceably and quietly have, hold and enjoy the Demised Premises,
without any interruption or disturbance from Landlord, subject to the terms
hereof.

                           ARTICLE XX. MISCELLANEOUS.

            Section 20.01. Interpretation.

            (a) Every term, condition, agreement or provision contained in this
Lease which imposes an obligation on Tenant shall be deemed to be also a
covenant by Tenant.

            (b) Any reference herein to subtenants or licensees shall not be
deemed to imply that any subtenants or licensees are permitted hereunder. Any
reference herein to any extension or renewal of the Term or any period during
which Tenant may be in possession after the Expiration Date shall not be deemed
to imply that any extension or renewal of the Term is contemplated hereby or
that Tenant shall be permitted to remain in possession after the expiration of
the Term.

            (c) If any provision of this Lease or the application thereof to any
person or circumstance shall to any extent be invalid or unenforceable, the
remainder of this Lease, or the application of such provision to persons or
circumstances other than those to which it is invalid or unenforceable, shall
not be affected thereby, and each provision of this Lease shall be valid and be
enforced to the fullest extent permitted by law.

            (d) The captions and headings used throughout this Lease are for
convenience of reference only and shall not affect the interpretation of this
Lease.

            (e) Anything in this Lease to the contrary notwithstanding:

                  (i) Any provision which permits or requires a party to take
            any particular action shall also be deemed to permit or require a
            party to cause such action to be taken; and

                  (ii) Any provision which requires any party not to take any
            particular action shall be deemed to require the party not to permit
            such action to be taken by any person or by operation by law.

            (f) This Lease may be executed in several counterparts; and in such
case the counterparts shall constitute but one and the same instrument.

            (g) Wherever a requirement is imposed on any party hereto, it shall
be deemed that such party shall be required to perform such requirement at its
own expense unless it is specifically otherwise provided herein.

            (h) The singular includes the plural and the plural includes the
singular.

            (i) All Exhibits and Schedules hereto are hereby incorporated by
reference in and form an integral part of this Lease, and all references to the
Lease shall be deemed to include such Exhibits and Schedules.

            Section 20.02. Construction of Words and Phrases:

            (a) Wherever it is provided herein that a party may perform an act
or do anything, it shall be construed that such party may, but shall not be
obligated to, so perform or so do.

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<PAGE>
            (b) The words "re-enter" and "re-entry" as used herein are not
restricted to their technical legal meaning.

            (c) The word "person" shall be construed as an individual,
fiduciary, estate, trust, partnership, firm, association, corporation, other
organization, or a government or governmental authority.

            (d) The following words and phrases shall be construed as follows:

                  (i) "At any time" shall be construed as, "at any time or from
            time to time."

                  (ii) "Any" shall be construed as, "any and all."

                  (iii) "Including" shall be construed as "including but not
            limited to."

            Section 20.03. Written Agreement Required:

            This Lease contains the entire agreement between the parties hereto
concerning the subject matter hereof, and supercedes all other agreements,
written or oral, with respect thereto. No amendment, alteration, modification of
or addition to the Lease will be valid or binding unless expressed in writing
and signed by Landlord and Tenant.

            Section 20.04. Notice:

            Every notice, request, consent, approval, waiver or other
communication under this Lease shall be deemed to have been given if in writing
and upon mailing by registered, overnight express/courier service or certified
mail, return receipt requested, postage prepaid, addressed:

            (a) If to Landlord, to the address designated as Landlord's Notice
Address, or such other address as Landlord designates, with a copy thereof to
such other person or party as Landlord shall designate;

            (b) If to Tenant, to the address designated as Tenant's Notice
Address, or such other address as Tenant designates, with a copy thereof to the
address designated as Tenant's Notice Copy Address or to such other person or
party as Tenant shall designate.

                  (i)   Landlord's Notice Address:

                  The Connell Company
                  45 Cardinal Drive
                  Westfield, New Jersey 07090
                  Attention: President

                  (ii)  Tenant's Notice Address until Tenant commences
                        operations in the Demised Premises:

                  Genta Incorporated
                  99 Hayden Avenue Suite 200
                  Lexington, MA 02421
                  Attention: Gerald M. Schimmoeller

                                       33
<PAGE>
                  After Tenant commences operations in the Demised
                  Premises:

                  Genta Incorporated
                  Two Oak Way
                  Berkeley Heights, NJ 07922
                  Attention: Gerald M. Schimmoeller

            Section 20.05. Survival of Provisions upon Termination of Lease.

            This Lease shall survive the expiration of the Term to the extent
necessary that any term, covenant or condition of this Lease requires the
performance of obligations or the forbearance of an act by either party hereto
after the termination of the Lease. Such survival shall be to the extent
reasonably necessary to fulfill the intent thereof, or if specified, to the
extent of such specification, as same is reasonably necessary to perform the
obligations and/or forbearance of an act set forth in such term, covenant or
condition.

            Section 20.06. Successors and Assigns:

            Subject to the provisions hereof, this Lease shall bind and inure to
the benefit of the parties and their respective successors, representatives,
heirs and permitted assigns.

            Section 20.07. Guarantor of Tenant:

            Any restrictions on or requirements imposed upon Tenant hereunder
shall be deemed to extend to any guarantor of Tenant, Tenant's subtenants,
concessionaires and licensees and it shall be Tenant's obligation to cause the
foregoing persons to comply with such restrictions or requirements.

            Section 20.08. Tenant at Sufferance:

            If Tenant shall remain in possession of the Demised Premises after
the end of the Term (including if the Demised Premises have not been surrendered
in accordance with the terms of this Lease), such holding over shall cause the
Tenant to be deemed a tenant-at-sufferance, subject to all of the provisions,
conditions and obligations of this Lease, except that the Rent to be charged
Tenant during such hold over period shall be (i) during the first thirty (30)
days of such hold over period, 150% of the monthly Rent in effect for the last
month of the Term or any renewal periods, and (ii) during any period thereafter,
two times the monthly Rent in effect for the last month of the Term or any
renewal periods. Any acceptance of hold over Rent by Landlord shall not be
deemed a waiver of any rights or remedies available to Landlord arising out of
Tenant's failure to have vacated the Demised Premises upon the end of the Term,
or an acquiescence to Tenant's tenant-at-sufferance period.

            Section 20.09. Interest:

            Any payment required to be made by Tenant under the provisions of
this Lease not made by Tenant when and as due shall be payable by Tenant to
Landlord on demand with interest thereon at three (3%) percent over the rate
designated by the Bank of New York, New York (or its successor) from time to
time as the prime rate, but not to exceed the highest legal rate, computed from
the date said sum became due to and including the date of payment thereof to
Landlord.

            Section 20.10. Late Charge:

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<PAGE>
            In order to cover the extra expense involved in handling delinquent
payments, Tenant, at Landlord's option, shall pay a "late charge" of five (5%)
percent of the amount due when any payment of Rent hereunder is received by
Landlord more than ten (10) days after the due date thereof. It is understood
and agreed that this charge is for additional expense incurred by Landlord,
shall not be considered interest, and shall be due in addition to the interest
required under Section 20.09 hereof.

            Section 20.11. Non-Waiver:

            The failure of Landlord to insist upon strict performance of any
covenants or conditions of this Lease or Landlord's failure to exercise any
option herein conferred in any one or more instances shall not be construed as a
waiver or relinquishment of any such covenants, conditions or options, but the
same shall be and remain in full force and effect. If Landlord pursues any
remedy granted by the terms of this Lease or pursuant to applicable law, it
shall not be construed as a waiver or relinquishment of any other remedy
afforded thereby.

            Section 20.12. Broker:

            Each party represents that there was no broker other than Cushman &
Wakefield of New Jersey, Inc. (the "Broker") responsible for bringing about or
negotiating this Lease. Each party agrees to defend, indemnify, and hold the
other harmless against any claims for brokerage commission or compensation with
regard to the Demised Premises by any other broker claiming or alleging to have
acted on behalf of or to have dealt with such party. Landlord will pay any fees
or commissions due the Broker.

            Section 20.13. Short Form Lease:

            Landlord and Tenant agree that neither party shall record the Lease.
Upon request of either party the other shall execute a document in recordable
form, or a short form lease or memorandum of lease in proper form for recording,
setting forth the Commencement Date and any provision hereof other than Sections
5.01, 5.02, 5.03, 5.05. The requesting party shall pay all recording fees and
costs in connection with any such short form or memorandum of lease.

            Section 20.14. Mechanics' Liens:

            Tenant shall not do or cause anything to be done whereby the Demised
Premises may be encumbered by a mechanic's lien. If any mechanic's or
materialman's lien is filed against the Demised Premises, the Building or the
Real Estate as a result of any Tenant Work or any additions, alterations,
repairs, installations, improvements or any other work or act of Tenant, Tenant
shall discharge or bond same within twenty days from the date of filing of the
lien. If Tenant shall fail to discharge or bond the lien, Landlord may bond or
pay the lien or claim for the account of Tenant without inquiring into the
validity of the lien or claim and Tenant shall reimburse Landlord upon demand.

            Section 20.15. Corporate Authority:

            (a) Tenant represents that the undersigned officer(s) has (have)
been duly authorized to enter into this Lease and that the execution and
consummation of this Lease by Tenant does not and shall not violate any
provision of any bylaws, certificate of incorporation, agreement, order,
judgment, governmental regulation or any other obligations to which Tenant is a
party or is subject.

            (b) Landlord represents that the undersigned officer of Landlord has
been duly authorized to enter into this lease and that the execution and
consummation of this Lease by Landlord does not and shall not violate any
provision of any bylaw, certificate of incorporation, agreement, order judgment,
governmental regulation or any other obligation to which Landlord is a party or
is subject.

                                       35
<PAGE>
            Section 20.16. Force Majeure:

            Except as otherwise provided herein, Landlord shall not be liable
for any delays and other events beyond the reasonable control of a party (each,
a "Force(s) Majeure") including, without limitation: acts of God; strikes,
lock-outs or other labor difficulties; explosion, sabotage, accident, riot or
civil commotion; act of war; fire or other casualty; requirements of governing
authorities or inability to obtain necessary governmental permits and approvals.

            Section 20.17. Governing Law:

            This Lease shall be governed by and construed pursuant to the laws
of the State of New Jersey.

            Section 20.18. Financial Statements:

            If requested by Landlord, Tenant shall, within 90 days after the
close of each of its fiscal years, deliver to Landlord Tenant's balance sheet
and profit and loss statement certified to by a recognized firm of certified
public accountants; provided, however, that this Section 20.18 shall not be
applicable so long as Tenant is a publicly traded company.

                      ARTICLE XXI. ENVIRONMENTAL MATTERS.

            Section 21.01. Industrial Site Recovery Act:

            (a) Tenant represents and warrants that it is not an "Industrial
Establishment" as that term is defined in the Industrial Site Recovery Act,
formerly known as the Environmental Cleanup Responsibility Act, N.J.S.A.
13:1K-6 et seq., as same may be amended from time to time (together with
all rules, regulations, ordinances, opinions, orders and directives issued or
promulgated pursuant-to or in connection with said Act by the New Jersey
Department of Environmental-Protection ("DEP"), or any subdivision or bureau
thereof or any other governmental or quasi-governmental agency, authority or
body having jurisdiction thereof, referred to herein as the "Act" or "ISRA").
Tenant shall not do or suffer anything that will cause it to become an
Industrial Establishment under the Act during the Term of this Lease. Landlord
may from time to time require Tenant at Tenant's sole expense to provide proof
satisfactory to Landlord that Tenant is not an Industrial Establishment. In the
event that Tenant now is or hereafter becomes an Industrial Establishment or is
required by the DEP, Tenant shall comply with all conditions as set forth in
subparagraphs (b) and (d) of this Section 21.01.

            (b) Tenant agrees that it shall, at its sole cost and expense,
fulfill, observe and comply with all of the terms and provisions of the Act to
the extent in any way applicable to Tenant (including Tenant's use of the
Demised Premises or Real Estate), or Tenant's activities (even if the Act
applies to an owner of property). Without limiting the foregoing, upon
Landlord's reasonable request therefor, and in all events no later than sixty
(60) days prior to "closing, terminating or transferring operations" (as said
terms are defined and used in the Act) out of the Demised Premises (it being
agreed that such 60 day time limit may be extended, in Landlord's discretion, if
such time limit is not reasonable in light of the DEP's required response time),
Tenant at its sole cost and expense, shall provide Landlord with a true copy of:

                  (i) a letter of non-applicability from DEP (or such other
            agency or body which shall then have jurisdiction over ISRA matters)
            in form satisfactory to Landlord's counsel, stating that ISRA does
            not apply to Tenant, Tenant's use and occupancy of the Demised
            Premises and to the closing, terminating or transferring of
            operations at the Demised Premises; or

                                       36
<PAGE>
                  (ii) a Negative Declaration (as said term is defined in ISRA)
            duly approved by DEP or such other agency or body then having
            jurisdiction over ISRA matters; or

                  (iii) a Cleanup Plan (as said term is defined in ISRA) duly
            approved by DEP (or such other agency or body which shall then have
            jurisdiction over ISRA matters), the intent of which will be to
            obtain from the DEP a "No Further Action" ("NFA") determination with
            respect to the Demised Premises.

            (c) Nothing in this Section shall be construed as limiting Tenant's
obligation to comply with ISRA.

            (d) In the event Tenant complies with paragraph (b) (iii) of this
Section by obtaining an approved Cleanup Plan, Tenant agrees that it shall, at
its sole cost and expense:

                  (i) post any financial guarantee or other bond required to
            secure implementation and completion of such Cleanup Plan; and

                  (ii) promptly and diligently implement and prosecute to
            completion said Cleanup Plan by obtaining an NFA determination, in
            accordance with the schedules contained therein or as may otherwise
            be ordered or directed by DEP or such other agency or body which
            shall then have jurisdiction over such Cleanup Plan. Tenant
            expressly understands, acknowledges and agrees that Tenant's
            compliance with the provisions of subparagraphs (b) and (d) may
            require Tenant to expend funds or do acts after the expiration or
            termination of the Lease Term and Tenant shall not be excused
            therefrom.

            (e) Within ten (10) days after a written request by Landlord or any
mortgagee of Landlord (or sooner, if required by the DEP) and, in any event, on
each anniversary of the Commencement Date, Tenant shall deliver to Landlord and
Landlord's Mortgagee, if any, a duly executed and acknowledged affidavit of
Tenant's chief executive officer, certifying:

                  (i) the proper four digit Standard Industrial Classification
            number relating to Tenant's then current use of the Demised Premises
            (Standard Industrial Classification Number to be obtained by
            reference to the then current Standard Industrial Classification
            Manual prepared and published by the Executive Office of the
            President, Office of Management and Budget or the successor to such
            publication); and

                  (ii) (A) that Tenant's then current use of the Demised
            Premises does not involve the generation, manufacture, refining,
            transportation, treatment, storage, handling or disposal of
            hazardous substances or waste (as hazardous substances and hazardous
            waste are defined in ISRA) on site, above ground or below ground
            (all of the foregoing are hereinafter collectively referred to as
            the "Presence of Hazardous Substances"), or, (B) that Tenant's then
            current use does involve the Presence of Hazardous Substances, in
            which event, said affidavit shall describe in complete detail that
            portion of Tenant's operations which involves the Presence of
            Hazardous Substances. Such description shall, inter alia, identify
            each hazardous substance and describe the manner in which Tenant
            generated, handled, manufactured, refined, transported, treated,
            stored and/or disposed of same. Tenant shall supply Landlord and
            Landlord's mortgagee, if any,

                                       37
<PAGE>
            with such additional information relating to the Presence of
            Hazardous Substances as Landlord or Landlord's mortgagee requests.

            (f) Without limiting the foregoing, Tenant agrees:

                  (i) at its sole cost and expense, to promptly discharge and
            remove any lien or encumbrance against the Demised Premises, the
            Building, the Real Estate or any other property owned or controlled,
            in whole or in part, by Tenant imposed due to Tenant's failure to
            comply with ISRA, and

                  (ii) to defend, indemnify and hold Landlord harmless from and
            against any and all liability, penalty, loss, expenses, damages,
            costs, claims, causes of action, judgments and/or the like, of
            whatever nature, including but not limited to attorneys' fees and
            disbursements and other costs of litigation or preparation therefor,
            to the extent such costs arise from or in connection with Tenant's
            failure or inability, for any reason whatsoever, to observe or
            comply with ISRA and/or the provisions of this Section 21.01.

            Section 21.02. Spill Act:

            (a) Tenant agrees that it shall, at its sole cost and expense,
observe, comply and fulfill all of the terms and provisions of the Spill
Compensation and Control Act, N.J.S.A. 58:10-23.11 et. seq., as the same may be
amended from time to time and all rules, regulations, ordinances, opinions,
orders and directives issued or promulgated pursuant to or in connection with
said Act by DEP, any subdivision or bureau thereof or governmental or
quasi-governmental agency or body having jurisdiction thereof. (Said act and all
said rules, regulations, ordinances, opinions, orders and directives are
hereinafter in this Section 21.02 collectively referred to as "Spill Act"), in
each case to the extent in any way applicable to Tenant (including Tenant's use
of the Demised Premises or Real Estate), or Tenant's activities (even if the Act
applies to an owner of property).

            (b) Without limiting the foregoing, Tenant agrees:

                  (i) that it shall not do, omit to do or suffer the commission
            or omission of any act which is prohibited by or may result in any
            liability under the Spill Act, including without limitation the
            discharge of petroleum products or other hazardous substances (as
            said terms are defined in the Spill Act); and

                  (ii) whenever the Spill Act requires the "owner or operator"
            to do any act, Tenant shall do such act and fulfill, all such
            obligations at its sole cost and expense, it being the intention of
            the parties hereto that Landlord shall be free of all expense and
            obligations arising from or in connection with compliance with the
            Spill Act.

            (c) Without limiting the foregoing, Tenant agrees:

                  (i) at its sole cost and expense, to promptly discharge and
            remove any lien or any encumbrance against the Demised Premises, the
            Building, the Real Estate or any other property owned or controlled,
            in whole or in part, by Tenant, imposed by Tenant's failure to
            comply with the Spill Act; and

                                       38
<PAGE>
                  (ii) to defend, indemnify and hold Landlord harmless from and
            against any and all liabilities, penalties, losses, expenses,
            damages, costs, claims, causes of action, judgments, suits and/or
            the like, of whatever nature, (including but not limited to
            attorneys' fees and other expenses of litigation or preparation
            therefor) which may at any time be imposed on, incurred by or
            asserted against any Indemnified Party and which in any way relate
            to or arise from or in connection with Tenant's failure or
            inability, for any reason whatsoever, to observe or comply with the
            Spill Act and/or the provisions of this Section 21.02.

            Section 21.03. Other Environmental Laws:

            Without limiting any of its other obligations hereunder, Tenant
agrees that it shall, at its sole cost and expense, promptly comply and keep
continually in full compliance with all federal, state and local laws,
ordinances, rules, regulations and requirements relating to air, ground and
water pollution and protection and/or preservation of the environment.

            Section 21.04. Survival of Environmental. Terms and Conditions.

            Tenant agrees that each and every provision of this Article XXI
shall survive the termination of this Lease. The parties hereto expressly
acknowledge and agree that Landlord would not enter into this Lease but for the
provisions of this Article XXI and the aforesaid survival thereof.

           [The remainder of this page is intentionally left blank.]

                                       39
<PAGE>
            IN WITNESS WHEREOF, Landlord and Tenant have caused this Lease to be
executed as of the day and year first above written.

ATTEST:                                THE CONNELL COMPANY

By: /s/ [ILLEGIBLE]                    By:  /s/ Duane Connell
      ---------------------------            -----------------------------------
Name: [ILLEGIBLE]                      Name:  Duane Connell
      ---------------------------            -----------------------------------
Title: Assistant Secretary             Title: Executive Vice President
      ---------------------------            -----------------------------------

ATTEST:                                GENTA INCORPORATED

By: /s/ Robert E. Klem                 By:  /s/  Gerald M. Schimmoeller
      ---------------------------            -----------------------------------
Name:  Robert E. Klem                  Name:  Gerald M. Schimmoeller
      ---------------------------
Title: Chief Scientific Officer        Title: Vice President and Chief Financial
      ---------------------------             Officer

                                       40
<PAGE>
STATE OF  Mass.      )
                     )SS.:
COUNTY OF Essex.     )

            On this 13 day of July, 2000, before me personally appeared Gerald
M. Schimmoeller to me known, who, being by me duly sworn, did depose and say
that he is the Vice President and Chief Financial Officer of Genta Incorporated,
the corporation described in and which executed the foregoing Lease; that he
knows the seal of said corporation, that the seal affixed to said instrument is
such corporate seal, that it was so affixed by authorization of the board of
directors of said corporation, and that he signed his name thereto by like
authorization.

            IN WITNESS WHEREOF, I hereunto set my hand and official seal.

                                            /s/ Lisa Sue Wood
                                            -----------------
                                             Notary Public

                                                            LISA SUE WOOD
(Notarial Seal)                                             Notary Public
                                                    My Comm. Expire June 7, 2002

STATE OF NEW JERSEY  )
                     )SS.:
COUNTY OF UNION      )

            On this 19th day of July, 2000, before me personally appeared Duane
Connell to me known, who, being by me duly sworn, did depose and say that (s)he
is the Ex VP of The Connell Company, the corporation described in and which
executed the foregoing Lease; that (s)he knows the seal of said corporation,
that the seal affixed to said instrument is such corporate seal, that it was so
affixed by authorization of the board of directors of said corporation, and that
(s)he signed his name thereto by like authorization.

            IN WITNESS WHEREOF, I hereunto set my hand and official seal.

                                          /s/ Karen A. Kulinich
                                          ---------------------
                                              Notary Public

                   KAREN A. KULINICH
              NOTARY PUBLIC OF NEW JERSEY
       Registered in Somerset and Union Counties
          My Commission Expires Sept. 30, 2002

(Notarial Seal)
<PAGE>
                                   EXHIBIT A

PARCEL I

      ALL THAT CERTAIN tract or parcel of land and premises, hereinafter
particularly described, situate, lying and being in the Township of Berkeley
Heights, Union County, and in the Borough of Watchung, Somerset County, and
State of New Jersey.

      BEGINNING at a point in the northwesterly sideline of Valley Road (60 feet
wide) said point being the northeasterly corner of Lot 3 Block 7501 and also
being the following bearings and distances from the intersection of the
northwesterly sideline of Valley Road (60 feet wide) and the southwesterly
sideline of Oak Way (60 feet wide) as shown on the tax assessment maps of the
Borough of Watchung, Somerset County, New Jersey and running; thence,

<TABLE>
<S>    <C>                              <C>
A.     S 53 degrees 10'54" W            135.42 feet along the widened
                                        northwesterly sideline of Valley Road to
                                        a point of curvature; thence,

B.     Southwesterly                    Along same on a curve to the left having
                                        a radius of 982.93 feet and an arc
                                        length of 402.10 feet to a point of
                                        tangency;thence,

C.     S 29 degrees 44'34" W            152.9 feet along same to a point of
                                        curvature; thence,

D.     Southwesterly                    Along same on a curve to the right
                                        having a radius of 2,834.93 feet and an
                                        arc length of 813.60 feet to the point
                                        of beginning and running; thence,

1.     Southwesterly                    Along the northwesterly sideline of
                                        Valley Road (60 feet wide) on a curve to
                                        the right having a radius of 2,834.93
                                        feet and an arc length of 314.52 feet to
                                        a point of tangency; thence,

2.     S 52 degrees 32'34" W            36.14 feet along same to a point of
                                        curvature; thence,

3.     Southwesterly                    Along same on a curve to the left having
                                        a radius of 2,894.93 feet and an arc
                                        length of 284.62 feet to a point in the
                                        line dividing Lots 1 and 3 Block 7501;
                                        thence,

4.     N 42 degrees 47" 56" W           333.93 feet to a point; thence,

5.     S 75 degrees 51' 00" W           64.31 feet to a point; thence,

6.     S 84 degrees 43' 17" W           65.64 feet to a point; thence,

7.     N 75 degrees 02' 05" W           57.86 feet to a point; thence,

8.     S 22 degrees 25'35" W            50.20 feet to a point; thence,

9.     S 33 degrees 03'37" W            90-23 feet to a point; thence,

10.    N 84 degrees 35'45" W            51.05 feet to a point; thence,
</TABLE>

                                      A-1
<PAGE>
<TABLE>
<S>   <C>                               <C>
11.   N 42 degrees 47'56" W             1,119.22 feet to a point in the
                                        southerly sideline of New Jersey
                                        Interstate Route 78; thence,

12.   N 56 degrees 06'40" E             788.60 feet along same to a point; thence,

13.   N 49 degrees 22'09" E             509.81 feet to a point in the line
                                        dividing Lots 1.01 and 1.02 Block 4301
                                        in the Township of Berkeley Heights,
                                        Union County, New Jersey and running;
                                        thence,

14.   S 29 degrees 21'06" E             1,495.22 feet to the point or place of
                                        beginning.
</TABLE>

Containing 35.5184 acres.

PARCEL II

      BEGINNING at a stone on the northwest side of the road that leads past the
house of now or formerly Joseph Line and is also a corner of his land; thence
north 37 degrees west and binding on said now or formerly Joseph Line's land
three chains and sixteen and a quarter links (208.725') to a stake standing in
the said now or formerly Joseph Line's line; thence south 14 degrees west and
binding on now or formerly Thompson Brown three chains and sixteen and a quarter
links (208.725') to a stake; thence south 37 degrees east and binding on the
said now or formerly Thompson Brown's land three chains sixteen and a quarter
links (208.725') to a stake by the side of said road; thence 44 degrees east and
binding on the side of said road three chains sixteen and a quarter links
(208.725') to the place of Beginning. Containing one acre strict measure.

      BEING the same premises conveyed to Corinne M. Lilliott by Deed of William
H. Raisch and Catherine E. Raisch, his wife, dated March 8, 1984, and recorded
in the Somerset County Clerk's office on March 16, 1984, in Deed book 1501, page
460.

                                      A-2
<PAGE>
                                   Exhibit B

                                  Rental Plan

                            Showing Demised Premises

                                  [FLOOR MAP]
<PAGE>
                                  EXHIBIT C-1

                            PLANS AND SPECIFICATIONS

                                     C-1-1

<PAGE>
                                  EXHIBIT C-2

                          CONNELL CORPORATE CENTER II
                          Berkeley Heights, New Jersey

                               TENANT WORKLETTER

            The Connell Company (subject to Section 10.04 of the Lease,
"Landlord") and Tenant are simultaneously executing a lease of the space
mentioned therein (the "Demised Premises"). To induce Tenant to enter into the
Lease (which is hereby incorporated by reference to the extent that the
provisions of this agreement apply thereto) and in consideration of the
covenants hereinafter contained, Landlord and Tenant mutually agree as follows:

1.    All terms defined in the Lease shall have the same meaning when used
      herein. The term "Usable Square Feet" shall refer to the square footage of
      the floor of the Demised Premises computed by measuring the area enclosed
      by: the finished surface of the office side of corridor and other
      permanent walls; the dominant portion or a major vertical penetration; and
      the center of partitions that separate the area being measured from
      adjoining office areas, store areas and/or Building Common Areas. No
      deductions shall be made for columns and projections necessary to the
      Building, and the above computation shall be made as if alcoves, recessed
      entrances or similar deviations from the corridor line were not present.

2.    Landlord shall not provide Tenant with any allowance against the cost of
      Tenant Work requested by Tenant in the Building; it being understood that
      Tenant shall be responsible for the full cost of any Tenant Work.

3.    Tenant shall cause to be prepared to the extent required: (i) all interior
      design drawings, layouts and material specifications for the Demised
      Premises; (ii) an estimate of the total cost of Tenant Work; (iii) all
      working, finished, detailed construction drawings and specifications for
      the Tenant Work and any revisions thereto, all to be satisfactory to
      Tenant and in compliance with all applicable building codes and all other
      applicable laws and regulations. A copy of the foregoing shall be
      submitted to Landlord for general review and consent (which consent will
      not be unreasonably withheld, conditioned or delayed), but Tenant shall
      remain responsible for compliance with all applicable building codes and
      any other applicable laws and regulations. All Tenant Work will be
      completed in accordance with these approved drawings and specifications
      and all such work will be in accordance with applicable building codes and
      any other applicable laws and regulations.

4.    (a)   Subject to subparagraph (b) below and the other provisions hereof,
            Tenant shall have the right to perform its Tenant Work, provided
            that the Tenant uses a first-class union general contractor. Said
            contractor must use the initial Building subcontractors for each of
            the mechanical, electrical and sprinkler work so as to maintain the
            integrity of said systems.

      (b)   Tenant will obtain all permits and arrange for all inspections
            required for occupancy, in connection with all Tenant Work. The cost
            of all such permits and inspections shall be included in determining
            the cost of Tenant Work.

                                     C-2-1
<PAGE>
5.    The Building shall be made available by Landlord, as is, for Tenant Work
      with the following improvements as part of the base building construction
      contract. The cost of any changes required by Tenant in said improvements
      shall be a portion of the cost of Tenant Work.

      a.    Electric Load/Wattage:

            (i)   The Building is designed for a capacity of 4.0 watts per
                  square foot for lights and 1.5 watts per square foot for
                  business machines.

            (ii)  Tenant will be responsible for construction and obtaining all
                  necessary approval for all special wiring and power
                  distribution for Tenant's equipment including but not limited
                  to computer equipment and separate air conditioning related
                  thereto.

      b.    Floor Decking:

            Robertson Under-Floor Duct Systems for electrical and
            telephone/computers with presets at one per 6.25 square feet is
            provided in all Tenant areas.

      c.    Window Coverings:

            The Building is supplied with installed thin line blinds on all
            exterior windows. Tenant shall not remove these blinds.

      d.    Sprinklers:

            Star unspoiler sprinkler heads are provided in all Tenant areas in
            accordance with Code.

      e.    Heating, Ventilating and Air Conditioning:

            The Building design provides sufficient capacity to maintain the
            following conditions in all occupied areas: Indoor summer
            temperature of 78 degrees F.D.B., at an outside temperature of 90
            degrees F.D.B.; Indoor winter temperatures of 70 degrees F.D.B. at
            outside temperature of 0 degrees F.D.B. Any special or supplemental
            exhaust or air conditioning required due to Tenant's equipment will
            be installed only at Tenant's expense and subject to the prior
            written approval of the Landlord.

6.    The Tenant's interior design shall provide for at least the following
      Landlord minimum standards for Tenant Work:

      a.    Partitions:

            (i)   Interior partitions - Such partitions shall be 3 5/8 inch
                  metal studs @ 24 inches o.c. with 1/2 inch gypsum wall board
                  on each side, ceiling height.

            (ii)  Demising partitions - Such partitions shall be 3 5/8 inch
                  metal studs @ 16 inches o.c. with sound-deadening insulation
                  and 1/2 inch gypsum wallboard.

      b.    Doors:

                                     C-2-2
<PAGE>
            All doors are to be set in 16 ga hollow metal frames.

            (i)   Tenant interior doors to be solid core, flush, birch stain
                  grade.

            (ii)  Suite entry door(s) to be solid core, wood flush, stain grade
                  veneer and/or glass entrance doors. The number of doors will
                  be in accordance with Code.

      c.    Door Hardware:

            All hardware shall be Schlage or equal. Locksets shall be keyed with
            the Building master system.

      d.    Flooring:

            Carpeting shall be an 18" x 18" module over the trench headers in
            areas not requiring tile, due to the Building's Robertson
            Under-Floor Duct System. Carpet in balance of space may be at
            Tenant's option.

      e.    Painting:

            (i)   Walls - two coats of paint.

            (ii)  Doors and Frames - two coats of paint.

                                     C-2-3
<PAGE>
                                   EXHIBIT D

                          CONNELL CORPORATE CENTER II

                             Rules and Regulations

      1. Landlord reserves the right to control and operate the Common Area.

      2. Tenant shall not obstruct the entrances, exits, corridors, elevators
and stairways of the Building and Tenant shall not use or permit their use for
any purpose other than ingress to or egress from the Demised Premises. Fire
exits are for emergency use only.

      3. Landlord may, from time to time, adopt appropriate procedures for the
security or safety of the Building and Tenant shall comply with such procedures.
Landlord may refuse admission to the Building to any person not properly
identified, or to any person whose presence, in Landlord's judgment, would be
prejudicial to the safety, character, reputation and interests of the Building
or its tenants. Landlord may limit or restrict access to the Building outside
Business Hours (as herein defined) and Tenant shall comply with such off-hours
procedures as Landlord may establish. Landlord shall in no way be liable to any
Tenant for damages or loss arising from the admission, exclusion or ejection of
any person to or from the Building or the Demised Premises.

      4. Tenant shall not install awnings, shades or other coverings on or in
any window of the Building or on any terrace. Tenant shall use only such window
blinds as Landlord has supplied and Tenant shall not remove them. Tenant shall
cooperate with Landlord in the efficient operation of the Building's air
conditioning system by lowering the window blinds in the Demised Premises, as
required. Tenant shall keep window sills in the Demised Premises in a neat and
orderly appearance and shall not hang items from the ceilings so as to be
visible from the exterior of the Building.

      5. The Building "Business Hours" (hereinafter so called), excluding the
cafeteria, shall be 8 AM to 6 PM on all days except weekends and Holidays. The
following days shall be considered Building Holidays:

                     New Year's Day
                     Presidents' Day
                     Memorial Day
                     Fourth of July
                     Labor Day
                     Thanksgiving Day
                     Day after Thanksgiving
                     Christmas Day

      Landlord reserves the right to modify the list of Building Holidays.

      Landlord shall not furnish janitorial and other services on Building
Holidays. At Tenant's request, Landlord shall provide such services on Building
Holidays at Tenant's sole expense.

      6. During Business Hours, Landlord shall provide, at Landlord's expense
and as part of the Rent, electricity for Tenant's HVAC and Common Area usage. On
weekends and Holidays, the Building will be heated or cooled for Tenant only
upon special request of Tenant. If Tenant requires electricity for HVAC or
Common Area usage outside Business Hours or on

                                      D-1
<PAGE>
weekends or Holidays, Landlord shall furnish same at Tenant's request and at
Tenant's expense as follows. Each hour or fraction thereof shall be charged to
Tenant at the rate of seventy-five dollars ($75.00) per hour for Tenant premises
of 40,000 square feet or less and an additional seventy-five dollars ($75.00)
per hour for each additional 40,000 rentable square feet or fraction thereof,
with a minimum charge of four (4) hours. Tenant shall pay such charges to
Landlord monthly together with Rent. The hourly rate may be adjusted if the
utility's charge to Landlord is increased. If Tenant does not notify Landlord
prior to its usage of electricity as set forth in this paragraph, Landlord shall
estimate Tenant's usage and shall charge Tenant accordingly.

      7. Tenant shall not use or permit the use of hand trucks in the Common
Area unless they are equipped with rubber tires and side guards.

      8. The entrance doors to the Demised Premises shall not be left open at
any time and shall be locked when Tenant is not in the Demised Premises.

      9. Tenant shall not make or permit to be made any noise, including the
playing of musical instruments, radio or television, which in the Landlord's
judgment may disturb other tenants. Tenant shall not bring into or keep in the
Demised Premises anything which may impair or interfere with any of the Building
services, heating or cleaning of the Building, including, without limitation,
ventilating, air conditioning, electrical or other equipment. Tenant shall not
bring any dangerous, inflammable, combustible or explosive objects or materials
into the Building or any Common Area.

      10. Tenant shall not permit any cooking on the Demised Premises.

      11. Tenant shall not discharge or permit any acids, vapors or other
materials to be discharged into the waste lines, vents or flues of the Building.
Tenant shall not use the water, wash closets and other plumbing fixtures in or
servicing the Demised Premises for any purpose other than for which they were
designed and constructed nor shall Tenant deposit any sweepings, rubbish, rags,
acids or other foreign substances therein. Tenant shall be liable for any damage
resulting from negligence or misuse by Tenant, its agents, employees, servants,
permitted subtenants and assignees, contractors or subcontractors, visitors or
licensees.

      12. Tenant may not install or maintain any sign, advertisement or notice
in or at the Real Estate or visible from the outside of the Real Estate without
the prior written consent of the Landlord. If Tenant installs such sign,
advertisement or notice, Landlord may remove same at Tenant's expense. Tenant
may identify its business name by lettering on the entrance door to the Demised
Premises pursuant to the terms of the Lease. Tenant may display its name,
location and such reasonable number of the principal officers and employees of
Tenant as Landlord in its sole discretion may approve in the Building directory
provided by Landlord in the first-floor and second-floor Lobby of the Building.

      13. The Real Estate is zoned for office and research use only, pursuant to
the zoning ordinances of the Township of Berkeley Heights, although Tenant is
only authorized to use the premises for office use. Neither the Demised
Premises, nor the Common Areas referred to in Paragraph 2.04 hereof shall be
used by Tenant, any affiliates thereof or any of their respective employees,
representatives, agents or servants, at any time, as a store, restaurant,
shoe-shine or other stand, or for manufacturing or other similar purposes or
otherwise in any manner prohibited by such zoning ordinances.

      14. Tenant's requirements will be attended to upon application at
Landlord's offices. Landlord's employees shall not perform any work or do
anything outside their regular duties for Tenant unless under special
instructions from Landlord's office and at the expense of Tenant.

                                      D-2
<PAGE>
      15. Tenant shall be responsible for providing electricity and other
utility services (excluding HVAC) for Landlord's agents, employees,
representatives, servants or contractors who are performing janitorial and
cleaning services or repairs or alterations to the Demised Premises.

      16. Tenant's employees, representatives, agents or servants shall not
loiter in and around the Parking Area, halls, stairways, elevators, entrances,
roof or any other part of the Building or Common Areas.

      17. Landlord shall provide periodic extermination services throughout the
Building, and Tenant shall provide Landlord with access to the Demised Premises
during Business Hours upon reasonable prior notice for the purpose of performing
such services. If, in the sole opinion of the Landlord additional extermination
is required in the Demised Premises, Landlord shall arrange for exterminators,
at Tenant's expense.

      18. Landlord shall provide, at its expense, those cleaning services set
forth in the Building Janitorial Specifications during weekdays (excluding
Holidays) between the hours of 6 PM and 11 PM. Upon Tenant's request, Landlord
shall provide cleaning services on weekends, Holidays or at other hours, at
Tenant's sole expense.

      19. Tenant shall not in any way deface any part of the Building or the
Demised Premises. Tenant shall not install linoleum or other similar floor
covering without affixing an interlining of builder's deadening felt to the
floor by paste or other water soluble material; the use of cement or similar
adhesive is expressly prohibited. Tenant shall not place equipment, desks, files
or other heavy objects on any trench header in the floor in the Demised
Premises.

      20. Tenant shall not place any additional locks or bolts on the doors of
the Demised Premises nor shall Tenant change or replace any existing locks. Upon
Tenant's request, new locks will be installed or changed by Landlord at Tenant's
expense; any new locks will remain operable by Landlord's Master Key. Upon
termination of the tenancy, Tenant shall deliver to Landlord all keys to the
Demised Premises and Building which Landlord has furnished to Tenant. In the
event of loss, Tenant shall pay to Landlord the cost of replacing the keys.

      21. Canvassing, peddling, soliciting and distributing handbills or other
written materials are prohibited in the Building.

      22. Landlord may designate certain places in the Parking Area for visitor,
reserved, handicapped or emergency parking.

      23. Landlord may create paths, walks or other means of cross access
through the Real Estate to other properties of the Landlord.

      24. Tenant, its employees, agents or servants, shall not conduct itself in
any manner inconsistent with the character of the Building or which will impair
the comfort and convenience of other tenants in the Building.

                                      D-3
<PAGE>
                                   EXHIBIT E

                       BUILDING JANITORIAL SPECIFICATIONS

                              TENANT OFFICE AREAS

DAILY:      (MONDAY THROUGH FRIDAY, HOLIDAYS EXCEPTED)

            l.    Remove all trash to designated area.

            2.    Spot clean glass areas to remove soil and smudges.

            3.    Clean drinking fountains.

            4.    Dust mop or vacuum uncarpeted areas using a large treated dust
                  mop.

            5.    Remove fingermarks and smudges from doors and wall surfaces.

            6.    Vacuum all carpeted areas using beater bar or brush vacuum
                  cleaner. All carpeted areas policed and all surface debris
                  removed.

            7.    Dust exposed areas within hand reach with treated cloths.

            8.    Damp mop floor and wash counters in kitchenettes.

            9.    Replace trash bags in garbage cans.

WEEKLY:

            1.    Spot clean walls, carpeting, partitions, fixtures, and doors.

MONTHLY:

            1.    Wipe wastepaper baskets to remove evident soil.

QUARTERLY:

            1.    Dust all areas above hand-high reach with treated cloths,
                  excluding ceilings and light fixtures.

            2.    Vacuum all air supply and exhaust diffusers.

EVERY SIX MONTHS:

            1.    Dust all blinds.

            2.    Wash all exterior windows, inside and outside.

                                      E-1
<PAGE>
OVERALL:

Tenants requiring services in excess of or more frequently than those described
above or services on Holidays, weekends, or before or after the building's
Business Hours shall request same through Landlord. All such services shall be
provided at Tenant's expense.

                                   LAVATORIES

Sweep and wash all lavatory floors with disinfectant nightly.

Clean mirrors, shelves, brightwork, and plumbing work nightly.

Wash and disinfect basins, bowls and urinals daily.

Empty and clean waste receptacles and fill wash dispensers with appropriate
tissues, towels and soap nightly. Sanitary napkin receptacles emptied, cleaned
and disinfected.

Wash and disinfect tile walls and dividing partitions weekly.

                      JANITORIAL CLOSETS AND STORAGE AREAS

Clean and store Mops.

Clean sinks and drains free of mop strings and other debris.

Turn off lights and close and lock doors.

Clean equipment.

               MAIN LOBBY, ATRIUM AREAS, ELEVATORS, AND CORRIDORS

Wipe and wash all floors in main and second floor lobby nightly.

Wipe walls and vacuum elevator floor nightly.

Sweep and/or vacuum all hallway corridors stairwells, landings and handrails
daily.

Remove fingermarks and smudges from doors, glass, and wall surfaces nightly.

Shampoo carpeting in public lobbies and corridors monthly and spot clean nightly
to remove stains.

Clean compactor room nightly.

Wash walls in corridors and lobbies not reached in general cleaning annually.

                                      E-2
<PAGE>
                                    EXHIBIT F

                            FORM OF LETTER OF CREDIT

                                             Effective Date:_______________
                                             L/C No.:

Beneficiary:
The Connell Company                          Amount:
45 Cardinal Drive                            USD $___________
Westfield, New Jersey 07090

We hereby establish this Irrevocable Letter of Credit No._______ for U.S.
Dollars _________________, in your favor as Beneficiary for the account of Genta
Incorporated, 99 Hayden Avenue, Suite 200, Lexington, Massachusetts 02421
("Genta"). Please be advised that this Letter of Credit supports Genta's
obligations under the Lease Agreement dated as of June 28, 2000 (as may be
amended from time to time, the "Lease") between The Connell Company, as
Landlord, and Genta, as Tenant. This Letter of Credit will have a stated
expiration date of [insert date which is one year from the Effective Date],
subject to the automatic extension as provided below.

The funds under this Letter of Credit are available to Beneficiary from time to
time up to the available amount as provided in this Letter of Credit (less any
drawings hereunder) against presentation of your draft at sight drawn on [insert
name of issuing bank] when accompanied by the following document:

          Beneficiary's written, signed and dated statement, signed by one of
          its purported authorized signatories, reading as follows:

          "The undersigned being duly authorized to make this statement does
           hereby state that we are drawing USD....... under Irrevocable Letter
           of Credit No.____________ because Genta, Inc. is in default under
           the terms of the Lease Agreement dated as of May 11, 2000 (as amended
           as of the date hereof) between The Connell Company, as Landlord, and
           Genta, Inc., as Tenant (the "Lease"); against period for the cure
           of such default under the Lease having expired; and the
           amount being drawn represents but does not exceed the amount due and
           owing under the Lease."

You may draw hereunder for the full available amount, or for lesser amounts from
time to time, as you may determine.

The expiration date of this Letter of Credit shall be automatically extended for
an additional period of one year from the present or each future expiration
date, unless at least 30 days prior to such date the Beneficiary receives from
us notice in writing by registered mail, hand delivery or overnight courier
service at the above address, that we elect not to renew this Letter of Credit
for such additional period. If the expiration date of this Letter of Credit is
extended as provided above, the amount available under this Letter of Credit
during such one year period covered by

                                      F-1
<PAGE>
such extension shall equal the amount available immediately prior to such
extension. Upon Beneficiary's receipt of such notice of non-extension,
Beneficiary may (within the then applicable expiration date) draw hereunder by
presentation to us of your draft, drawn at sight, for an amount not to exceed
the balance remaining under this Letter of Credit, accompanied by Beneficiary's
written, signed and dated statement, signed by one of its purported authorized
signatories, reading as follows:

      "The undersigned being duly authorized to make this statement does hereby
      state that we are drawing USD........ under Irrevocable Letter of Credit
      No._______ because we have received notice from [insert name of issuing
      bank] of its decision not to extend Letter of Credit Number_______ for an
      additional year."

This Letter of Credit is transferable by The Connell Company (or its successors
or assigns) provided that such transfer does not violate any governmental rule,
order or regulation applicable to [insert name of issuing bank] and subject to
receipt by [insert name of issuing bank] of a transfer request in the form
attached hereto, accompanied by the original Letter of Credit and amendments, if
any. Costs and expense of such transfer shall be for the account of Genta
Incorporated.

All correspondence and any drawings presented in connection with this Letter of
Credit must only be presented to us at [insert name and address of issuing
bank].

We hereby engage with you that all drafts drawn under and in compliance with the
terms of this Letter of Credit will be duly honored if drawn and presented for
payment as indicated above on or before the expiration date of [insert date one
year from Effective Date] or any automatically extended expiration date as
provided herein above.

This Letter of Credit is subject to the Uniform Customs and Practice For
Documentary Credits (1993 Revision) International Chamber of Commerce
Publication No. 500.

                                                Yours Truly,

                                                [NAME OF ISSUING BANK]

                                                ________________________________
                                                Authorized Signature

                                      F-2
<PAGE>
                                   EXHIBIT G

                           COMMENCEMENT DATE ADDENDUM

      Reference is made to the Lease dated as of June ___, 2000 (the "Lease")
between The Connell Company ("Landlord") and Genta Incorporated ("Tenant").
Pursuant to Section 2.01(h) of the Lease, Landlord and Tenant are entering into
this addendum to the Lease to confirm the Commencement Date under the Lease.

            Landlord and Tenant hereby confirm that the Commencement Date of the
Lease is ___________________.

      The parties agree that this addendum is intended solely to confirm the
date of the Commencement Date under the Lease, and this addendum shall not in
any way affect or modify any of the terms of the Lease.

                                              THE CONNELL COMPANY

                                              By: ______________________________
                                              Name: ____________________________
                                              Title:____________________________
                                              Date:_____________________________

                                              GENTA INCORPORATED

                                              By: ______________________________
                                              Name: ____________________________
                                              Title:____________________________
                                              Date:_____________________________

                                       G-1
<PAGE>
                                   EXHIBIT H

                               [PARKING AREA MAP]<PAGE>
                                                                   EXHIBIT 10.77

                                    SUBLEASE

            THIS SUBLEASE ("Sublease") is made as of the 13 day of August, 2001
by and between EXPANETS, Inc., a Delaware corporation, f/k/a COMMUNICATION
SYSTEMS USA, INC., a Delaware corporation, (the "Sublessor"), and GENTA
INCORPORATED, a Delaware corporation, (the "Sublessee").

                                   WITNESSETH

            WHEREAS, Sublessor is the tenant of approximately 11,657 rentable
square feet of space ("Leased Premises") in a building located at Two Oak Way,
Berkeley Heights, New Jersey (the "Building") under that certain Lease dated as
of December 2, 1998, by and between The Connell Company ("Landlord") and
Sublessor, as tenant which Lease, as modified, assigned, restated, supplemented
and/or amended from time to time is hereinafter referred to as the "Master
Lease" and is attached hereto and incorporated herein as Exhibit A:

            WHEREAS, Sublessee desires to sublease the Leased Premises in stages
from Sublessor, and Sublessor desires to sublet the Leased Premises in stages to
Sublessee;

            NOW, THEREFORE, in consideration of the mutual covenants herein
contained and other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged by Sublessor and Sublessee, Sublessor and
Sublessee hereby agree as follows:

      1. Recitals. The foregoing recitals shall constitute an integral part of
this Sublease, and this Sublease shall be construed in light thereof.

      2. Demise. Sublessor does hereby demise and sublease to Sublessee the
Subleased Premises (defined below) subject, in all respects, to the terms and
provisions of this Sublease.

            (a) From the Commencement Date until December 31, 2002 (the "First
Sublease Period"), the Subleased Premises shall be that portion of the Leased
Premises consisting of approximately 7,771 rentable square feet, as shown on
Exhibit B attached hereto and incorporated herein. Sublessor shall continue to
occupy the remainder of the Leased Premises (the "Remaining Space"), subject to
the terms and conditions set forth below.

            (b) From January l, 2003 through the end of the Term of this
Sublease (the "Second Sublease Period"), the Subleased Premises shall consist of
the entire Leased Premises. Sublessor shall vacate the Remaining Space prior to
the commencement of the Second Sublease Period (time being of the essence) and
shall leave the Remaining Space in good order and condition.

            (c) Notwithstanding anything to the contrary in this Section 2,
Sublessor shall have the right to accelerate the commencement of the Second
Sublease Period on not less than 30 days prior notice, by written notice to
Sublessee and Landlord (the "Put Notice"), upon the following terms and
conditions. The Put Notice shall specify a date prior to January 1, 2003 on
which the Second Sublease Period shall begin (in which event the First Sublease
Period shall end
<PAGE>
on the day preceding the date so designated), and may be given only at such time
as Sublessor is not in default after the expiration of any applicable cure
period under this Sublease and/or the Master Lease.

            (d) Notwithstanding anything to the contrary in this Section 2,
Sublessee shall have the right to accelerate the commencement of the Second
Sublease Period on not less than two business days prior notice, if and only if
Sublessor shall have ceased to conduct business in the Remaining Space, by
written notice to Sublessor and Landlord (the "Call Notice"). The Call Notice
shall specify a date prior to January 1, 2003 on which the Second Sublease
Period shall begin (in which event the First Sublease Period shall end on the
day preceding the date so designated), and may be given only at such time as
Sublessee is not in default after the expiration of any applicable cure period
under this Sublease and/or the Master Lease.

      3. Term. The term ("Term") of this Sublease shall commence on the date of
execution of this Sublease by Landlord, Sublessor and Sublessee (the
"Commencement Date") and shall terminate on February 28, 2004, unless sooner
terminated as hereinafter provided.

      4. Rent.

            (a) Sublessee shall pay to Sublessor Base Rent at the annual rental
of $27.00 per rentable square foot in the Subleased Premises, without notice or
demand, in equal monthly installments in advance beginning on the Commencement
Date and continuing on the first day of each month thereafter during the Term,
as follows:

<TABLE>
<CAPTION>
                                   Annual Base Rent      Monthly Base Rent
                                   ----------------      -----------------
<S>                                <C>                   <C>
     First Sublease Period            $209,817.00            $17,484.75
     Second Sublease Period           $314,739.00            $26,228.26
</TABLE>

            (b) Sublessee shall pay to Sublessor as additional rent "Sublessee's
Share" of the Tax Increase Amount and the Operating Increase Amount (each as
defined in the Master Lease and billed to Sublessor under Article V of the
Master Lease), prorated to reflect any partial month at the beginning and end of
the Term of this Sublease. "Sublessee's Share" shall be two-thirds (equivalent
to a Tenant Proportionate Share of 2.5% under the Master Lease) during the First
Sublease Period, and 100% (equivalent to a Tenant Proportionate Share of 3.74%
under the Master Lease) during the Second Sublease Period. Sublessor shall
provide to Sublessee within seven business days of receiving same a copy of each
invoice and other notice from Landlord regarding the Tax Increase Amount and the
Operating Increase Amount, and if so requested by Sublessee shall exercise at
Sublessee's direction any right of audit or review provided under the Master
Lease.

            (c) Sublessee shall pay to Sublessor as additional rent Sublessee's
Share of each installment of the payment on account of electricity required to
be paid by Sublessor under Section 8.02 of the Master Lease, to the extent
attributable to the Term, prorated to reflect any partial period at the
beginning and end of the First Sublease Period. Payments under Sections 4(b) and
4(c) shall be made as follows: (i) regularly scheduled equal payments will be
made on

                                       2
<PAGE>
the first day of each month; (ii) payments the amount of which is subject to
adjustment or established with reference to a one-time bill from the Landlord
will be paid on the later of the first day of the month after, or seven business
days after, Sublessee receives Sublessor's notice of the amount thereof.

            (d) All Rent shall be payable at the office of the Sublessor at the
following address:

            Expanets, Inc.
            9780 Mt. Pyramid Court, Suite 400 Englewood, CO 80112
            Attn: Reggie Vegliante

            or at such other address as directed by notice from Sublessor to
Sublessee.

      5. Compliance with Master Lease.

            (a) Sublessee shall not take any action or fail to take any action
in connection with the Subleased Premises that would constitute or cause a
default by Sublessor under the provisions of the Master Lease, the provisions of
which are hereby incorporated herein by reference, except the following
"excluded sections": the preamble, Section 1.03, Section 1.04, Section 1.05,
Section 1.06, Section 2.01(f), second sentence of Section 2.01(i), Section
2.01(p) (until the Second Sublease Period), Section 2.01(t), Section 2.01 (aa),
Section 2.01(y), Section 3.01, Section 3.02, Section 4.01, Section 5.01, Section
10.01(a), the reference to "to any unaffiliated company" in Section 10.01(b),
the second sentence of Section 12.03 (until the Second Sublease Period), Section
20.04, Section 20.12, the second and third sentences of Section 20.13, and
Exhibit C-2 of the Master Lease shall not be incorporated herein. All defined
terms shall have the meaning ascribed to them in the Master Lease unless defined
in this Sublease. With respect to the terms and conditions of the Master Lease
which are incorporated herein, the terms and conditions applying to the
"Landlord" in the Master Lease shall apply to Sublessor and those applying to
the "Tenant" in the Master Lease shall apply to Sublessee, except as altered,
modified or otherwise agreed to herein. For purposes of this Sublease,
references in the Master Lease to the "Term" shall mean the Term of this
Sublease and references to the "Demised Premises" in the Master Lease shall mean
the Subleased Premises, except as otherwise provided herein.

            (b) Sublessor shall comply with all of the terms and conditions of
the Master Lease, except as to those provisions which are the sole
responsibility of Sublessee hereunder, and shall not act or fail to act so as to
cause an Event of Default under the Master Lease.

            (c) Sublessor represents and warrants that: (a) Exhibit A
constitutes a true, correct and complete copy of the Master Lease, and comprises
the entire understanding and agreement of Landlord and Sublessor with respect to
the Leased Premises, (b) the Master Lease is in full force and effect in
accordance with its terms, (c) neither Landlord nor Sublessor is in default
under the Master Lease, and, to the best of its knowledge, there exists no state
of facts and no event has occurred which, with the passage of time or the giving
of notice, or both, would constitute a default by either Landlord or Sublessor
under the Master Lease, and (d) the

                                       3
<PAGE>
"Commencement Date" of the Master Lease is March 1, 1999. Sublessor will not (i)
amend or modify the Master Lease without the prior written consent of Sublessee,
which consent shall not be unreasonably withheld or delayed, or (ii) agree to a
termination of the Master Lease (except if Sublessee is then in default under
this Sublease beyond applicable periods for notice and cure) unless, in
connection therewith, Landlord accepts this Sublease as a direct lease between
Landlord and Sublessee.

            (d) Any other provision of the Master Lease or this Sublease to the
contrary notwithstanding, Sublessee shall not be responsible for (i) the
obligation of "Tenant" under the Master Lease to pay to Landlord the Basic Rent,
Tax Increase Amount, or Operating Increase Amount as described in of the Master
Lease, or the payment on account of electricity described in Section 8.02 of the
Master Lease, or (ii) any obligations of "Tenant" wherever expressed in the
Master Lease relating to the indemnification of Landlord with respect to any
loss, damage, liability, obligation, cost or expense arising as a result of an
act or omission that occurred prior to the Commencement Date or arising as a
result of a negligent act or omission of Sublessor, its agents, employees,
contractors or invitees, or related to the Remaining Space, (all of which
obligations expressed in clauses (i) and (ii) above shall be and remain the
responsibility of Sublessor). In the event that any term or provision of the
Master Lease is inconsistent or conflicts with any term or provision of this
Sublease, the terms and provisions of the Master Lease shall control, except to
the extent expressly provided herein.

      6. Default and Remedies. The occurrence of any one or more of the
following events shall be an "Event of Default" hereunder:

            (a) if Sublessee causes an Event of Default under the Master Lease;
or

            (b) if Sublessee fails to perform or observe any requirement of this
Sublease which is to be kept or performed by or on behalf of the Sublessee and
such default is not cured within fifteen (15) days after written notice to
Sublessee (or, if the same is not reasonably susceptible of cure within 15 days,
if Sublessee does not promptly commence to cure such default and diligently
pursue the same to completion thereafter);

            Upon an occurrence of an Event of Default hereunder, Sublessor shall
have the right to terminate this Sublease and to recover immediate possession of
the Subleased Premises and to exercise any rights or remedies against Sublessee
as Landlord may exercise against Sublessor under the Master Lease. In addition,
upon the occurrence of an Event of Default hereunder, Sublessor shall be
entitled to recover all damages permitted by law, including reasonable
attorneys' fees and court costs, and to enforce all rights and remedies
available to Sublessor at law or in equity, which remedies shall be cumulative,
the exercise of one not to preclude the later exercise of another.

            Sublessor shall request the Landlord supply a simultaneous copy of
each notice of default under the Master Lease to Sublessee, and whether or not
Landlord so agrees, Sublessor shall supply Sublessee a copy of each notice of
default from Landlord within five business days after receiving the same from
Landlord, and shall afford Sublessee opportunity to cure said default within any
applicable period for notice and cure under the Master Lease.

                                       4
<PAGE>
      7. Termination of Master Lease. If the Master Lease is terminated for any
reason, this Sublease shall terminate as of the date of termination of the
Master Lease and Sublessor shall not be liable to Sublessee by reason thereof
unless such termination is based upon any action or failure to act by Sublessor
which constitutes a default under Section 5(b) of this Sublease.

      8. Indemnity. Subject to Section 5(d) of this Sublease, any reference to
"Landlord" in Sections 15.01, 15.02 and 15.03(a) (except last sentence),
15.03(c) and Article XXI of the Master Lease shall also include Landlord
hereunder.

      9. Sublessor's Rights and Remedies.

            (a) The taking of any action by Sublessee, the occurrence of any
event in regard to Sublessee, or the failure to act by Sublessee which would be
a default under the provisions of the Master Lease if such action were taken by
Sublessor, if such event occurred in regard to Sublessor or if the failure were
the fault of Sublessor, shall entitle Sublessor to take any or all actions with
regard to Sublessee under this Sublease which Landlord is permitted to take
against Sublessor under the terms of the Master Lease.

            (b) No receipt of money by Sublessor from Sublessee after any
default by Sublessee or after the termination of this Sublease or after the
service of any notice or after the commencement of any suit or after final
judgment for possession of the Subleased Premises shall waive such default or
reinstate, continue or extend the Term of this Sublease or affect any such
notice or suit, as the case may be.

            (c) No waiver of any default of Sublessee hereunder shall be implied
from omission by Sublessor to take any action on account of such default, and no
express wavier shall affect any default other than the default specified in the
express waiver and that only for the time and to the extent therein stated.

            (d) Subject to Sublessor's timely discharge of its obligations under
the Master Lease for which Sublessee is not responsible hereunder, Sublessee
agrees to look solely to the Landlord, and not to Sublessor, for the performance
of all services and obligations of the Landlord under the Master Lease with
respect to the Subleased Premises. At Sublessee's expense and request, Sublessor
will take all reasonable actions necessary to enforce the Sublessor's rights as
tenant under the Master Lease with respect to the Subleased Premises.

      10. Subordination to Master Lease. Sublessee acknowledges that this
Sublease is subject and subordinate to the Master Lease and (except as provided
herein as between Sublessor and Sublessee) is subject to all applicable terms
and provisions of the Master Lease. In the event any provision of this Sublease
conflicts with any applicable provision of the Master Lease incorporated by
reference herein, this Sublease shall be controlling as between Sublessor and
Sublessee. Notwithstanding anything to the contrary in this Sublease, nothing in
this Sublease shall modify the terms of the Master Lease or otherwise modify any
rights which Landlord may have under the Master Lease (including without
limitation Landlord's right in accordance with the terms of the Master Lease to
terminate any party's interest in the Subleased Premises in the event of a
default under the Master Lease).

                                       5
<PAGE>
      11. Security Deposit.

            (a) Sublessee has delivered a standby letter of credit issued by
Bank of America N.A. in the amount of $104,908.50 ("Letter of Credit") to secure
Sublessee's obligations hereunder, a copy of the form of which is attached
hereto as Exhibit C. Not later than the first day of the Second Sublease Period,
Sublessee shall provide a replacement Letter of Credit in the amount of
$157,369.50. Each such Letter of Credit shall be a clean, irrevocable and
unconditional standby Letter of Credit issued by (i) Bank of America N.A. or
(ii) another commercial bank, trust company, national banking association or
savings and loan association having offices for banking purposes in the City of
Englewood, Colorado or a correspondent bank at which the draw on the Letter of
Credit may be presented in the City of Englewood, Colorado (the "Issuing Bank")
and which (or the parent company of which) shall have outstanding unsecured,
uninsured and unguaranteed indebtedness, or shall have issued a letter of credit
or other credit facility that constitutes the primary security for any
outstanding indebtedness (which is otherwise uninsured and unguaranteed), that
is then rated, without regard to qualification of such rating by symbols such as
"+" or "-" or numerical notation, "Aa" or better by Moody's Investors Service
and "AA" or better by Standard & Poor's Corporation, and has combined capital,
surplus and undivided profits of not less than $1,000,000,000.00. Any
replacement Letter of Credit shall (i) have a term of not less than one year,
(ii) be in form and content satisfactory to Sublessor (and substantially as
shown on Exhibit C to this Sublease), (iii) be for the benefit of Sublessor,
(iv) be in the amount then required hereunder, (v) provide for multiple partial
draws, and (vi) provide that it shall be deemed automatically renewed, without
amendment, for consecutive periods of one year each thereafter during the Term,
unless the Issuing Bank sends notice (the "Non-Renewal Notice") to Sublessor by
certified mail, return receipt requested, not less than thirty (30) days next
preceding the then expiration date of the Letter of Credit that it elects not to
have such Letter of Credit renewed.

            (b) If the Issuing Bank elects not to renew such Letter of Credit
for the required additional period, then Sublessee shall cause a new Letter of
Credit to be issued in replacement thereof from an Issuing Bank at least fifteen
(15) days prior to the expiration date of the existing Letter of Credit;
provided, however, that Sublessee shall not permit an existing Letter of Credit
to expire until such new Letter of Credit has been issued. Upon receipt of such
replacement Letter of Credit, Sublessor shall surrender the Letter of Credit
being replaced to Sublessee. If Sublessee fails to provide a replacement Letter
of Credit by the date which is fifteen (15) days prior to the expiration date of
the existing Letter of Credit, Sublessor shall be entitled to draw the entire
amount of the existing Letter of Credit and to hold such proceeds as a cash
security deposit in an interest-bearing account pending the receipt of a
replacement Letter of Credit.

            (c) If an Event of Default shall have occurred and be continuing
with respect to any provision of this Sublease, including but not limited to the
provisions relating to the payment of Rent, Sublessor shall be entitled to use
or apply funds from any cash security deposit to remedy such default. Should
there be no cash security deposit, or should Sublessor reasonably determine that
the amount of the cash security deposit would be insufficient to remedy such
default, Sublessor shall be entitled to draw upon the existing Letter of Credit
(but only in the amount reasonably necessary, together with any cash security
deposit, to remedy such default).

                                       6
<PAGE>
            (d) Any balance of a draw on the Letter of Credit remaining after
satisfaction of the obligations of Sublessee as to which such Event of Default
shall have occurred shall be deposited by Sublessor and retained in an
interest-bearing account (it being understood that except as otherwise provided
in Section 11(b) above, Sublessor shall draw on the letter of credit only such
amounts as are reasonably necessary to remedy a default by Sublessee). If
Sublessor applies or retains any part of the cash security or proceeds of the
Letter of Credit, as the case may be, Sublessee shall, within five (5) days
after written demand therefor, deposit with Sublessor the amount so applied or
retained so that Sublessor shall have the full Security Deposit required
pursuant to Section 11 on hand at all times during the Term. If Sublessee shall
fully and faithfully comply with all of the terms, provisions, covenants and
conditions of this Sublease, the Letter of Credit, and the balance of any cash
security deposit and accrued interest, shall be returned to Sublessee within
thirty (30) days after the Expiration Date and Sublessee's surrender of
possession of the Premises to Sublessor. Sublessor shall have the right to
transfer the Letter of Credit to any transferee of Sublessor's interest in the
Master Lease and this Sublease which has assumed Sublessor's obligations
thereunder, in accordance with the transfer requirements of the Issuing Bank,
and Sublessor shall thereupon be released from all liability for the return of
the Letter of Credit.

            (e) Prior to January 1, 2004, if any portion of the security deposit
is so used or applied, Sublessee shall, within ten (10) days after demand
therefor, increase the amount of the Letter of Credit or deposit cash with
Sublessor in an amount sufficient to restore the Security Deposit (e.g., the
amount of any cash security deposit plus the remaining balance of the Letter of
Credit) to the Required Amount. The "Required Amount" shall be as follows:

<TABLE>
<S>                                                            <C>
            First Sublease Period                              $104,908.50

            Second Sublease Period to September 30, 2003       $157,369.50

            October 1-31, 2003                                 $131,141.25

            November 1-31, 2003                                $104,913.00

            December 1-31, 2003                                $78,684.75

            January 1 - March 31, 2004                         $52,456.50
</TABLE>

Sublessee's failure to do so shall be a material breach of this Sublease.
Sublessor shall return the Letter of Credit or remit the cash Security Deposit
to Sublessee within thirty (30) days of the date this Sublease terminates, less
any amounts applied on account of any default by Sublessee hereunder.

      12. Refunds. Provided there exists no Event of Default by Sublessee under
this Sublease, Sublessor shall pay to Sublessee any sums which Sublessor
receives from the Landlord under the Master Lease with respect to the Subleased
Premises during the Term, including, but not limited to, any refunds of or
additional rent which have been paid by Sublessee. Payment (less any sums
expended by Sublessor for collection thereof) shall be made by Sublessor to
Sublessee within ten (10) business days of Sublessor's receipt of any such sum.

                                       7
<PAGE>
      13. Repairs and Maintenance. Notwithstanding anything contained herein to
the contrary, in the event that a condition exists in the Subleased Premises
that Landlord is obligated to repair under the terms of the Master Lease, or
that Sublessor is obligated to repair under the terms of the Master Lease but
Sublessee is not obligated to repair under this Sublease, Sublessee shall so
advise Sublessor, and Sublessor, in turn, shall promptly advise Landlord
thereof. Sublessor shall have no liability to Sublessee for Landlord's failure
to make any such repair.

      14. Insurance. Sublessee agrees to comply with all of the insurance
requirements and obligations of Sublessor as set forth in the Master Lease with
respect to the Subleased Premises, and to name both Sublessor and Landlord as
additional insureds on any required insurance policies.

      15. Limitations on Sublessee's Liability.

            (a) Sublessee acknowledges that Sublessor has made no
representations or warranties with respect to the Building or the Subleased
Premises except as provided in this Sublease and Sublessee accepts the Subleased
Premises in AS IS condition.

            (b) Sublessor shall not be required to perform any of the covenants
and obligations of the Landlord under the Master Lease with respect to services,
maintenance, and all other obligations which by their nature are not capable of
performance by Sublessor, and insofar as any of such obligations of the
Sublessor hereunder are required to be performed under the Master Lease by the
Landlord thereunder, Sublessee shall rely on and look solely to the Landlord for
the performance thereof. If the Landlord shall default in the performance of any
of its obligations under the Master Lease or breach any provision of the Master
Lease pertaining to the Subleased Premises, Sublessee shall have the right, at
Sublessee's expense and upon prior notice to Sublessor, and in the name of
Sublessor to make any demand or institute any action or proceeding, in
accordance with and not contrary to any provision of the Master Lease, against
the Landlord under the Master Lease for the enforcement of the Landlord's
obligations thereunder. Sublessee shall defend, indemnify and hold Sublessor
harmless from and against any suit, action, cost, expense, damage or liability
which arises out of or results from or is alleged to arise out of or result from
Sublessee's exercise of its rights under this paragraph.

            (c) If the consent or approval of Landlord is required under the
Master Lease with respect to any matter relating to the Subleased Premises,
Sublessee shall be required first to obtain the consent or approval of Sublessor
with respect thereto, which shall not be unreasonably withheld, conditioned or
delayed, and, if Sublessor grants such consent or approval, Sublessor shall
promptly forward such request for consent or approval to the Landlord, but
Sublessor shall not be responsible for obtaining such consent or approval.
Sublessor shall have no liability to Sublessee for the failure of Landlord to
give its consent.

      16. Consent To Sublease By Landlord. This Sublease shall not become
operative until and unless the Landlord has given to Sublessor its consent
hereto. Sublessor shall make diligent efforts to obtain Landlord's consent but
shall not be responsible for Landlord's failure to consent to this Sublease.
Should Landlord not consent to this Sublease within ten (10) business days after
the date first set forth above, Sublessor shall return to Sublessee the Letter
of Credit and any Rent already paid by Sublessee, whereupon each party shall be
released from all

                                       8
<PAGE>
obligations with respect hereto and neither party shall have any further rights
in law or in equity with respect to this Sublease.

      17. Occupancy of Remaining Space and Subleased Premises during the First
Sublease Period.

            (a) Demising Wall. Sublessee shall have the right to construct at
Sublessee's cost and expense a demising wall or partition dividing the Subleased
Premises from the Remaining Space at the location shown on Exhibit B within one
hundred twenty (120) days of the Commencement Date, provided Sublessor obtains
Landlord's prior consent thereto in accordance with the Master Lease, which
consent Sublessor agrees to diligently pursue if so requested by Sublessee.
Sublessor shall cooperate, at no out-of-pocket cost to Sublessor, with
Sublessee's efforts to prepare plans and obtain building permits for the
demising wall. The demising wall shall (i) be comparable to the existing
demising walls of the Leased Premises (and otherwise reasonably acceptable to
Sublessor and Sublessee); (ii) not interfere with the HVAC system servicing the
Subleased Premises or the portion of the space retained by Sublessor; (iii) be
constructed in a good and workmanlike manner in compliance with all applicable
laws and regulations, and free from all liens and claims of mechanics or
materialmen, and (iv) shall be constructed, if at all, in accordance with the
requirements of the Master Lease applicable to alterations. Until the demising
wall is completed, Sublessor and Sublessee shall each secure their respective
facilities consistent with the terms of this Sublease.

            (b) Main Entrances, Security System. Sublessor shall use the
existing rear entrance to the Leased Premises as its sole outside entrance
during the First Sublease Period. Sublessee shall use the existing main entrance
to the Leased Premises as its main entrance, but shall also have the right to
use the existing rear entrance, in common with Sublessee, for access to the
Computer Area (defined below) and for emergency purposes only. Sublessee shall
have the right to control the existing security system for the Leased Premises
and shall manage the security system so as to provide access to Sublessor
through the rear entrance at all times (subject to interruption by Landlord
pursuant to the Master Lease).

            (c) Computer Cables and Wiring. Sublessor and Sublessee agree that
Sublessor previously installed existing above-ceiling cables and wiring (the
"Existing Cables and Wiring") which as of the Commencement Date connect
computers and other equipment in the Subleased Premises with the computer room
in the Remaining Space shown on Exhibit B (the "Computer Area"). Sublessee shall
have the exclusive right to disconnect the Existing Cables and Wiring and,
subject to the terms of the Master Lease, to use, replace and maintain the
Existing Cables and Wiring for Sublessee's own purposes; and in exercising such
rights Sublessee shall make reasonable efforts to minimize interference with
Sublessor's business operations.

            (d) Conference Room. Sublessee grants Sublessor a non-exclusive
license to use the conference room shown on Exhibit B ("Conference Room")
during the First Sublease Period, at no additional charge, during Sublessee's
normal business hours in accordance with reasonable rules and regulations
adopted by Sublessee. Such rules and regulations shall include, without
limitation, a reasonable reservation procedure. The Conference Room shall be
available to Sublessor during Sublessee's normal business hours upon 24 hours
advance written request to

                                       9
<PAGE>
Sublessee in accordance with that procedure provided Sublessee has not reserved
the Conference Room for its own use at the time of the receipt of Sublessor's
request. Such license shall be irrevocable during the First Sublease Period
unless there has occurred a default by Sublessor under this Sublease or the
Master Lease, or unless Sublessor has repeatedly failed to comply with the rules
and regulations as to use of the Conference Room.

            (e) Signage. Within ten business days after the Commencement Date,
Sublessee shall remove Sublessor's sign from the main lobby and restore any
damage (other than to the sign itself) caused by such removal, all at the sole
cost and expense of Sublessee. Sublessor shall have the right to maintain during
the First Sublease Period a small sign at the entrance to the Subleased Premises
directing visitors to the rear entrance to the Remaining Space. The size,
appearance and location of such sign shall be subject to the prior reasonable
approval of Sublessee and Landlord. During the First Sublease Period, both
Sublessee and Sublessor shall have the right to be listed on any Building lobby
directory to the extent permitted under the Master Lease.

            (f) Furniture.

                  (i) Not later than two business days after Landlord has
executed this Sublease to evidence its consent thereto, Sublessor shall sell to
Sublessee and Sublessee shall purchase from Sublessor all of the furniture
listed on Exhibit D to this Sublease (the "Personal Property"), for a total
purchase price of $100,000. Sublessor represents and warrants to Sublessee as of
the execution of this Sublease and as of the date of transfer, that Sublessor
has good and marketable title to the Personal Property free and clear of all
liens, claims, leases and rights of others, that Sublessor has the power and
authority to transfer the Personal Property in accordance with this Section, and
that the transfer of the Personal Property to Sublessee will not violate any
agreement or order by which Sublessor or its assets are bound. Sublessor shall
transfer title to the Personal Property by a Bill of Sale which shall include
the warranties set forth above. Sublessor shall remove the two television sets
in the Conference Room and the television set in the lobby, and restore any
damage resulting from such removal, within ten business days after the
Commencement Date, and if Sublessor fails to do so, Sublessee shall have the
right to do so and offset the costs thereof against any and all amounts due to
Sublessor hereunder.

                  (ii) Sublessee grants to Sublessor, effective upon completion
of the purchase and sale of the Personal Property, a license to use those items
of the Personal Property which are located in the Remaining Space on the date of
the execution of this Sublease by Sublessor and Sublessee, without additional
charge, in Sublessor's business operations in the Remaining Space during the
balance of First Sublease Period. Sublessor shall keep such items in good order
and repair, reasonable wear and tear and casualty excepted, and shall surrender
the same to Sublessee at the conclusion of the First Sublease Period. Such
license shall be irrevocable during the First Sublease Period unless there has
occurred a default (after expiration of any applicable period for cure) by
Sublessor under this Sublease or the Master Lease.

            (g) Workroom Cabinets. The Parties have agreed that Sublessor may
remove wall cabinets from the existing workroom in the Remaining Space and
remodel the workroom into a conference room, provided the same is accomplished
in accordance with the applicable

                                       10
<PAGE>
requirements of the Master Lease and without any requirement to turn the
cabinets over to the Landlord at the end of the Master Lease term. If Sublessor
elects to remove the cabinets, Sublessor shall, at Sublessee's option, either
(i) allow Sublessee to take possession of the cabinets so removed for
Sublessee's use, or (ii) remove and dispose of the cabinets at Sublessor's sole
cost and expense.

            (h) Satellite Dish and Other Rooftop Equipment. As between Sublessor
and Sublessee, Sublessee shall have the exclusive right to exercise the rights
of "Tenant" under Section 9.03(d) of the Master Lease, which relates to rooftop
equipment.

      18. Alterations by Sublessee. Notwithstanding anything to the contrary in
this Sublease, Sublessee shall have the right to construct modifications to the
Subleased Premises which are consistent with the use of the Subleased Premises
for general office use, so long as such modifications are approved in advance by
Landlord and constructed in accordance with all applicable requirements of the
Master Lease.

      19. Assignment and Sublet. Notwithstanding anything to the contrary
herein,

            (a) Sublessor agrees that during the First Sublease Period,
Sublessor will not assign its interest in the Master Lease, or sublet the
Remaining Space.

            (b) Sublessee presently leases other space in the building under a
Lease with Landlord dated as of June 28, 2000 (the "Genta Lease"). If Sublessee
assigns or sublets the space under the Genta Lease in a transaction which is
either approved by Landlord or does not require Landlord's consent under the
Genta Lease (a "Permitted Transfer"), then (subject to Landlord's consent if
required under the Master Lease) Sublessee shall have the right to assign this
Sublease or sublet the Subleased Premises to the transferee at the time of the
Permitted Transfer, without the consent of Sublandlord.

      20. Miscellany.

            (a) In the event that any provision of this Sublease is deemed to be
invalid or unenforceable for any reason, this Sublease shall be construed as not
containing such provision, and the invalidity or unenforceability thereof shall
not render any other provision of this Sublease invalid or unenforceable.

            (b) All notices shall be in writing, and delivered by hand or by
Federal Express or other nationally recognized overnight delivery service for
next business day delivery, postage prepaid, addressed as follows:

             If to Sublessor:

             Expanets, Inc.
             9780 Mt. Pyramid Court, Suite 400
             Englewood, CO 80112
             Attention: Reggie Vegliante

                                       11
<PAGE>
             If to Sublessee:

             Genta, Incorporated
             Two Oak Way Berkeley Heights, New Jersey
             Attention: Chief Financial Officer

             If to Landlord:

             The Connell Company
             1 Connell Drive
             Berkeley Heights, New Jersey 07922
             Attn: President

A notice shall be deemed given, in the case of hand delivery, when delivered or,
in the case of mailing by overnight delivery service, on the next business day
after being deposited with the delivery service. Either party may, by written
notice, change the address to which notices are to be sent. The parties agree to
provide each other copies of any notices or demands from Landlord.

            (c) Each party represents and warrants to the other that it has not
dealt with any broker in connection with this Sublease, and each agrees to
indemnify the other party from and against all claims, liabilities, cost and
expense arising out of any claim of any broker claiming to have dealt with the
indemnifying party in connection with this Sublease.

            (d) This Sublease may be executed in any number of counterparts,
which together shall constitute a single instrument.

            WITNESS the hands and seals of the parties hereto as of the day and
year first above written.

                                      SUBLESSOR:

                                      EXPANETS, INC., a Delaware corporation

                                      BY: /s/ [ILLEGIBLE]
                                         ---------------------------------------
                                      Its:  EVP & CEO
                                         ---------------------------------------

                                      SUBLESSEE:

                                      GENTA INCORPORATED, a Delaware
                                      corporation

                                      BY: /s/ [ILLEGIBLE]
                                         ---------------------------------------
                                      Its:  EVP & CEO
                                         ---------------------------------------

                                       12
<PAGE>
                               LANDLORD'S CONSENT

            The Connell Company ("Landlord") executes this Landlord's Consent to
confirm its agreement as follows:

            (1) Landlord hereby acknowledges and consents to the Sublease
      between Expanets Inc. as sublessor and Genta Incorporated ("Genta") as
      sublessee, to which this Landlord's Consent is attached.

            (2) Landlord shall make reasonable efforts to provide a simultaneous
      copy of each notice hereafter given by Landlord to Expanets Inc. under the
      Master Lease, to Genta at the address set forth in the Sublease or such
      other address as Genta may hereafter provide to Landlord in writing.
      Notwithstanding the foregoing, Landlord's failure to provide any such
      notice shall not constitute a default by Landlord, nor shall Landlord be
      liable for any damage, lost, cost or expense arising out of such failure.

            IN WITNESS WHEREOF, the undersigned has executed this Landlord's
Consent this 23rd day of August, 2001.

                                 THE CONNELL COMPANY

                                 By:   /s/ Duane Connell
                                      ----------------------------------------
                                 Its:  Duane Connell, Executive Vice President
                                      ----------------------------------------

                                       13
<PAGE>
                                    EXHIBIT A

                                  Master Lease

                           EXHIBIT A FOLLOWS THIS PAGE

                                       14
<PAGE>
                                   EXHIBIT B

                                   FLOOR PLAN

                                       15
<PAGE>
[BANK OF AMERICA LOGO]

                                   EXHIBIT C

                                                                         PAGE: 1

DATE: AUGUST 17, 2001

IRREVOCABLE STANDBY LETTER OF CREDIT NUMBER: 3040012

        BENEFICIARY                                    APPLICANT
EXPANETS, INC.                                 GENTA INCORPORATED
9780 MT. PYRAMID COURT, SUITE 400              TWO OAK WAY
ENGLEWOOD, CO 80112                            BERKELEY HEIGHTS, NJ 07922
ATTN: REGGIE VEGILANTE

                                                       AMOUNT
                                               NOT EXCEEDING USD: 104,908.50
                                               NOT EXCEEDING ONE HUNDRED FOUR
                                               THOUSAND NINE HUNDRED EIGHT AND
                                               50/100'S US DOLLARS

                                                       EXPIRATION
                                               AUGUST 15, 2002 AT OUR COUNTERS

WE HEREBY ESTABLISH THIS IRREVOCABLE LETTER OF CREDIT NO. 3040012 FOR ONE
HUNDRED FOUR THOUSAND NINE HUNDRED EIGHT AND 50/100 U.S. DOLLARS
(USD$104,908.50), IN YOUR FAVOR AS BENEFICIARY FOR THE ACCOUNT OF GENTA
INCORPORATED, TWO OAK WAY, BERKELEY HEIGHTS, NEW JERSEY 07922 ("GENTA"). PLEASE
BE ADVISED THAT THIS LETTER OF CREDIT SUPPORTS GENTA'S OBLIGATIONS UNDER THE
SUBLEASE AGREEMENT DATED AS OF AUGUST 13, 2001 (AS MAY BE AMENDED FROM TIME TO
TIME, THE "SUBLEASE") BETWEEN EXPANETS, INC., AS SUBLESSOR, AND GENTA, AS
SUBLESSEE. THIS LETTER OF CREDIT WILL HAVE A STATED EXPIRATION DATE OF AUGUST
15, 2002, SUBJECT TO THE AUTOMATIC EXTENSION AS PROVIDED BELOW.

THE FUNDS UNDER THIS LETTER OF CREDIT ARE AVAILABLE TO BENEFICIARY FROM TIME
TO TIME UP TO THE AVAILABLE AMOUNT AS PROVIDED IN THIS LETTER OF CREDIT, LESS
ANY DRAWINGS HEREUNDER, AGAINST PRESENTATION OF YOUR DRAFT(S) AT SIGHT DRAWN
ON BANK OF AMERICA, N.A. WHEN ACCOMPANIED BY THE FOLLOWING DOCUMENT(S):

BENEFICIARY'S WRITTEN, SIGNED AND DATED STATEMENT, SIGNED BY ONE OF ITS
PURPORTED AUTHORIZED SIGNATORIES, READING AS FOLLOWS:

"THE UNDERSIGNED BEING DULY AUTHORIZED TO MAKE THIS STATEMENT DOES HEREBY STATE
THAT WE ARE DRAWING USD $_______ UNDER IRREVOCABLE STANDBY LETTER OF CREDIT NO.
3040012 BECAUSE GENTA INCORPORATED IS IN DEFAULT UNDER THE TERMS OF THE SUBLEASE
AGREEMENT DATED AS OF AUGUST 13, 2001 BETWEEN EXPANET, INC., AS SUBLESSOR, AND
GENTA INCORPORATED, AS SUBLESEE; ANY PERIOD FOR THE CURE OF SUCH DEFAULT UNDER
THE SUBLEASE HAVING EXPIRED; AND THE AMOUNT BEING DRAWN REPRESENTS BUT DOES NOT
EXCEED THE AMOUNT DUE AND OWING UNDER THE SUBLEASE."

YOU MAY DRAW HEREUNDER FOR THE FULL AVAILABLE AMOUNT, OR FOR LESSER AMOUNTS FROM
TIME TO TIME, AS YOU MAY DETERMINE. PARTIAL DRAWINGS ARE PERMITTED.

THE EXPIRATION DATE OF THIS LETTER OF CREDIT SHALL BE AUTOMATICALLY EXTENDED FOR
AN ADDITIONAL PERIOD OF ONE YEAR FROM THE PRESENT OR EACH FUTURE EXPIRATION
DATE, UNLESS AT LEAST THIRTY (30) DAYS PRIOR TO SUCH DATE THE BENEFICIARY
RECEIVES FROM US NOTICE IN WRITING BY REGISTERED MAIL, HAND DELIVERY OR
OVERNIGHT COURIER SERVICE AT THE ABOVE ADDRESS, THAT WE ELECT NOT TO RENEW THIS
LETTER OF CREDIT FOR SUCH ADDITIONAL PERIOD. IF THE EXPIRATION DATE OF THIS
LETTER OF CREDIT IS EXTENDED AS PROVIDED ABOVE, THE AMOUNT AVAILABLE UNDER THIS
LETTER OF CREDIT DURING SUCH ONE YEAR PERIOD COVERED BY SUCH EXTENSION SHALL
EQUAL THE AMOUNT AVAILABLE IMMEDIATELY PRIOR TO SUCH EXTENSION. UPON
BENEFICIARY'S RECEIPT OF SUCH NOTICE OF NON-EXTENSION, BENEFICIARY MAY (WITHIN
THE THEN APPLICABLE EXPIRATION DATE) DRAW HEREUNDER BY PRESENTATION TO US ON
YOUR DRAFT, DRAWN AT

                                    ORIGINAL
                                                           [LOGO] Recycled Paper

                                       16
<PAGE>
                                                                         PAGE: 2

[BANK OF AMERICA LOGO]

                        [LETTERHEAD OF BANK OF AMERICA]

THIS IS AN INTEGRAL PART OF LETTER OF CREDIT NUMBER: 3040012

SIGHT, FOR AN AMOUNT NOT TO EXCEED THE BALANCE REMAINING UNDER THIS LETTER OF
CREDIT, ACCOMPANIED BY BENEFICIARY'S WRITTEN, SIGNED AND DATED STATEMENT, SIGNED
BY ONE OF ITS PURPORTED AUTHORIZED SIGNATORIES, READING AS FOLLOWS:

"THE UNDERSIGNED BEING DULY AUTHORIZED TO MAKE THIS STATEMENT DOES HEREBY STATE
THAT WE ARE DRAWING USD $__________ UNDER IRREVOCABLE STANDBY LETTER OF CREDIT
NO. 3040012 BECAUSE HAVE RECEIVED NOTICE FROM BANK OF AMERICA, N.A. OF ITS
DECISION NOT TO EXTEND THIS LETTER OF CREDIT NO. 3040012 FOR AN ADDITIONAL
YEAR."

THIS LETTER OF CREDIT IS TRANSFERABLE BY EXPANETS, INC. (OR ITS SUCCESSORS BY
OPERATION OF LAW) PROVIDED THAT SUCH TRANSFER DOES NOT VIOLATE ANY GOVERNMENTAL
RULE, ORDER OR REGULATION APPLICABLE TO BANK OF AMERICA, N.A. AND SUBJECT TO
RECEIPT BY BANK OF AMERICA, N.A. OF A TRANSFER REQUEST IN THE FORM ATTACHED
HERETO AS EXHIBIT A, ACCOMPANIED BY THE ORIGINAL LETTER OF CREDIT AND
AMENDMENTS, IF ANY, COSTS AND EXPENSE OF SUCH TRANSFER SHALL BE FOR THE ACCOUNT
OF GENTA INCORPORATED.

ALL CORRESPONDENCE AND ANY DRAWINGS PRESENTED IN CONNECTION WITH THIS LETTER OF
CREDIT MUST ONLY BE PRESENTED TO US AT BANK OF AMERICA, N.A., 333 S. BEAUDRY
AVE., 19TH FLOOR, LOS ANGELES, CA 90017, MAIL CODE: CA9-703-19-23.

WE HEREBY ENGAGE WITH YOU THAT ALL DRAFTS DRAWN UNDER AND IN COMPLIANCE WITH
THE TERMS OF THIS LETTER OF CREDIT WILL BE DULY HONORED IF DRAWN AND PRESENTED
FOR PAYMENT AS INDICATED ABOVE ON OR BEFORE THE EXPIRATION DATE OF AUGUST 15,
2002 OR ANY AUTOMATICALLY EXTENDED EXPIRATION DATE AS PROVIDED HEREIN ABOVE.

THIS LETTER OF CREDIT IS SUBJECT TO THE UNIFORM CUSTOMS AND PRACTICE FOR
DOCUMENTARY CREDITS (1993 REVISION) INTERNATIONAL CHAMBER OF COMMERCE
PUBLICATION NO. 500.

IF YOU REQUIRE ANY ASSISTANCE OR HAVE ANY QUESTIONS REGARDING THIS TRANSACTION,
PLEASE CALL 213-345-6626.

/s/ Narongson M. Boriboon                 /s/ Lawrence Banales
---------------------------------         ---------------------------------
AUTHORIZED SIGNATURE                      AUTHORIZED SIGNATURE

NARONGSON M. BORIBOON                      LAWRENCE BANALES

                       THIS DOCUMENT CONSISTS OF 2 PAGE(S)

                                    ORIGINAL

                                       17                  [LOGO] Recycled Paper
<PAGE>
                                    EXHIBIT D

                                    FURNITURE

Includes all wall hangings and wall mounted easels

RECEPTION AREA: 2 end tables, 2 single chairs, 1 double-seated chair, reception
desk, and desk chair.

CAFETERIA: 2 round tables, 1 square table, 10 chairs, 1 garbage cans,
refrigerator, dishwasher, microwave, all installed cabinets

SMALL BREAKOUT ROOM: installed cabinets, refrigerator.

MAIN CONFERENCE ROOM: conference table, 16 black leather chairs, 3 credenza's,
installed telecommunications & video equipment (except LCD projector and
portable easel and televisions (2))

Storage Room:

SMALL CONFERENCE ROOM "B": 6 chairs, table, 1 credenza cabinetry and wall
mounted easel.

IT ROOM: 10 tables (some bolted together), 1 desks, 12 chairs (NOTE: Expanets
may take 3 tables or desks and 3 chairs)

CONFERENCE ROOM "C": 6 chairs, table and installed cabinetry

WORK ROOM & Closet: All installed cabinetry.

SMALL OFFICES (EXCLUDING TOM WHITES OFFICE): includes desk, desk chair, 2 side
chairs, wall mounted easel, overhead cabinets and desk cabinets. TOTAL: 8

Tom Whites Small Office : 1 desk, 1 chair, 2 side chairs

LARGE OFFICES: Includes desk, desk chair, 3 side chairs in two offices & 2 side
chairs in 2 offices, coat cabinet, wall mounted easel, overhead and desk
cabinets. TOTAL: 4

SMALL CUBICLES: desk, desk chair, overhead cabinet and 2 floor cabinets.
TOTAL: 32

LARGE CUBICLES: desk, desk chair, overhead cabinet, 2 floor cabinets and 1 side
chair. TOTAL: 4

FILE CABINETS: 18 black metal 5 drawer cabinets

                  1 small single sided metal cabinet
                  1 small double-sided cabinet

DATE: August 9, 2001

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