Document:

Employee non-disclosure and developments agreement, Mark Leuchtenberger

 Exhibit 10.37 
 Execution Copy 
 RIB-X PHARMACEUTICALS,
INC. 
 EMPLOYEE NON-DISCLOSURE AND
DEVELOPMENTS AGREEMENT 
 As a condition of my employment with Rib-X Pharmaceuticals, Inc. its
subsidiaries, affiliates, successors or assigns (together the “Company”), and in consideration of my employment with the Company and my receipt of the compensation now and hereafter paid to me by the Company, I agree to the following:

 1. Company’s Business. I acknowledge that the Company is engaged in the business of discovering,
developing and commercializing antibiotics (the “Business”). 
 2. Confidential Information. I
acknowledge that for the purposes of this Agreement, the term “Confidential Information” shall mean all information (financial, technical or otherwise) in whatever form (written, oral or otherwise) that relates to the Company’s
Business and which is disclosed to me or acquired by me in the course of my employment in any way concerning the trade secrets, projects, activities, business, clients, trade practices, know-how or affairs of the Company, its parents, subsidiaries
and affiliates, including, without limitation, all information concerning research, development tools, applications, products, business formulas, discoveries, ideas, concepts, know-how, techniques, diagrams, flow charts, data, algorithms, source and
object code, methods of operations, solutions, tools, marketing and development plans, customer or investor names, transactions, acquisitions, all marketing plans, strategies and forecasts and other technical or business information, regarding
existing and/or contemplated products, processes, techniques or know-how, or any data or information developed by me pursuant to the performance of my services hereunder. I further understand that Confidential Information does not include any of the
foregoing items which have become publicly known and made generally available through no wrongful act of mine or of others who were under confidentiality obligations as to the Confidential Information involved. 

3. Use of Confidential Information. 
 (a) During the course of my employment, I acknowledge that I will have access to Confidential Information. Therefore, during the term of my employment, and for all times thereafter, I will treat as
confidential and, except as required in the performance of my employment duties and responsibilities, will not disclose, publish, use or otherwise make available to the public or to any individual, firm or corporation any Confidential Information.

 (b) I shall notify the Company immediately upon discovery of any unauthorized disclosure of Confidential Information, use of
Confidential Information other than in carrying out my duties with the Company, or any other breach of this Agreement by me, and will cooperate with the Company in every reasonable way to help the Company regain possession of the Confidential
Information and prevent its further unauthorized use. 
 4. Return of Confidential Information. I agree that all
Confidential Information, together with all notes and records relating thereto, and all copies, duplicates, reproductions, facsimiles or excerpts thereof in my possession, are the exclusive property of the Company. I will return promptly all such
materials to the Company upon the termination of my employment or upon the Company’s demand. In addition, I will return promptly to the Company upon the 

 
conclusion of my employment all reports, files, memoranda, records and software, credit cards, cardkey passes, door and file keys, computer access codes or disks, instructional material, and
other physical or personal property which I receive or prepare in connection with my employment with the Company. 
 5.
Former Employer Information. I agree that I will not, during my employment with the Company, improperly use or disclose any proprietary information or trade secrets of any former or concurrent employer or other person or entity and
that I will not bring onto the premises of the Company any unpublished document or proprietary information belonging to any such employer, person or entity unless consented to in writing by such employer, person or entity. 

6. Third Party Information. I recognize that the Company has received and in the future will receive from third parties
their confidential or proprietary information subject to a duty on the Company’s part to maintain the confidentiality of such information and to use it only for certain limited purposes. I agree to hold all such confidential or proprietary
information in the strictest confidence and not to disclose it to any person, firm or corporation or to use it except as necessary in carrying out my duties for the Company consistent with the Company’s agreement with such third party.

 7. Proprietary Rights. 
 (a) I agree to assign, and hereby assign, to the Company, without additional compensation, all right, title and interest in all creations, inventions, ideas, designs, copyrightable materials, trademarks,
and other technology and rights (and any related improvements or modifications), whether or not subject to patent or copyright protection (collectively, “Creations”), relating to any activities of the Company that are conceived or
developed by me in the course of my employment, whether conceived alone or with others and whether or not conceived or developed during regular business hours, and if based on Confidential Information, after the termination of my employment for any
reason. Such Creations shall be the sole property of the Company and, to the maximum extent permitted by applicable law, shall be deemed “works made for hire” as the term is used in the United States Copyright Act. 

(b) I agree to promptly inform the Company of any such Creations. I will also allow the Company to inspect any Creations I conceive or
develop within (i) one (1) year after the termination of my employment for any reason, or (ii) during the Salary Continuation Period (as that term is defined in the Employment Agreement), whichever period is greater, to determine if
they are based on Confidential Information. I will (whether during my employment or after the termination of my employment) execute such written instruments and do other such acts as may be necessary in the opinion of the Company or its counsel to
secure the Company’s rights in the Creations, including obtaining a patent, registering a copyright, or otherwise (and I hereby irrevocably appoint the Company and any of its officers as my attorney in fact to undertake such acts in my name). I
agree that my obligation to execute written instruments and otherwise assist the Company in securing its rights in the Creations will continue after the termination of my employment for any reason. 

  
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 (c) To the extent, if any, that I retain any right, title or interest with respect to any
Creations that are delivered to the Company or relate to my employment with the Company, I hereby grant to the Company an irrevocable, paid-up, transferable, sub-licensable, worldwide right and license (i) to modify all or any portion of such
Creations, including, without limitation, the making of additions to or deletions from such Creations, regardless of the medium (now or hereafter known) into which such Creations may be modified and regardless of the effect of such modifications on
the integrity of such Creations, and (ii) to identify me, or not to identify me, as one or more authors of or contributors to such Creations or any portion thereof, whether or not such Creations or any portion thereof have been modified. I
further waive any “moral” rights, or other rights with respect to attribution of authorship or integrity of such Creations that I may have under any applicable law, whether under copyright, trademark, unfair competition, defamation, right
of privacy, contract, tort or other legal theory. 
 (d) I have attached to this Agreement as Exhibit A, a list describing all
inventions, original works of authorship, developments, improvements, and trade secrets which were made by me prior to my employment with the Company (collectively referred to as “Prior Inventions”), which belong to me, which relate to the
Company’s proposed business, products or research and development, and which are not assigned to the Company hereunder; or, if no such list is attached, I represent that there are no such Prior Inventions. If in the course of my employment with
the Company, I incorporate into a Company product, process or machine a Prior Invention owned by me or in which I have an interest, the Company is hereby granted and shall have a nonexclusive, royalty-free, irrevocable, perpetual, worldwide license
to make, have made, modify, use and sell such Prior Invention as part of or in connection with such product, process or machine. 
 8. Conflicting Employment. I agree that, during the term of my employment with the Company, I will not engage in any other employment, occupation, consulting or other business activity
competitive with the Business of the Company, nor will I engage in any other activities that conflict with my obligations to the Company. 
 9. Non-Competition. During my employment and for a period of one (1) year following the date on which my employment with the Company terminates for any reason (the “Restricted
Period”), I shall not, directly or indirectly, own, manage, operate, control or participate in the ownership, management or control of, or be connected as an officer, employee, partner, director, or otherwise with, or have any financial
interest in, or aid or assist anyone else in the conduct of, any entity or business (existing on the date that my employment with the Company terminates and/or during the one-year period thereafter) that competes with the Business conducted by the
Company or any of its subsidiaries or affiliates within any area in which the Company conducts its Business on the date that my employment with the Company terminates. Notwithstanding the foregoing, my ownership of securities of a public company
engaged in competition with the Company’s Business not in excess of two percent (2%) of any class of such securities shall not be considered a breach of the covenants set forth in this Section. 

10. Non-Solicitation. I agree that during the Restricted Period, I will not, directly or indirectly, take any of the
following actions, and, to the extent that I own, manage, operate, control, am employed by or participate in the ownership, management, operation or control of, or am connected in any manner with, any business of the type and character engaged in
and 

  
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competitive with the Business of the Company or any of its subsidiaries or affiliates during the period of my employment, I will use my best efforts to ensure that such business does not take any
of the following actions: 
 (a) persuade or attempt to persuade any customer of the Company to cease doing business with the
Company or any of its subsidiaries or affiliates, or to reduce the amount of business it does with the Company or any of its subsidiaries or affiliates; 
 (b) solicit for me or for any person or entity other than the Company, the business of any customer of the Company or any of its subsidiaries or affiliates that was a customer of the Company within six
months prior to the termination of my employment; 
 (c) persuade or attempt to persuade any present employee of the Company or
any of its subsidiaries or affiliates, or any individual who was its employee or any of its subsidiaries or affiliates during the two (2) years prior to the termination of my employment, to leave the employ of the Company or any of its
subsidiaries or affiliates; or 
 (d) knowingly hire or offer employment to any present senior (at the level of vice president
or higher) employee of the Company or any of its subsidiaries or affiliates, or any individual who was its senior (at the level of vice president or higher), employee or any of its subsidiaries or affiliates during the two (2) years prior to
the termination of my employment. 
 11. Special Remedy. I recognize that the Confidential Information to be
protected by this Agreement is special, unique and extraordinary in character, and that in the event of any breach by me of any of the terms or conditions of this Agreement, the Company shall be entitled, if it so elects, to institute and prosecute
proceedings in any court of competent jurisdiction, either in law or in equity, to obtain damages from me for any such breach or to enforce the specific performance of this Agreement by me. I further acknowledge that a breach of my obligations under
this Agreement could cause the Company irreparable harm for which no adequate remedy at law would be available, and that the Company in such circumstances would be entitled to injunctive relief preventing or enjoining any breach of my obligations,
without the need to post any bond. I specifically consent to the jurisdiction of the United States District Court for the District of Connecticut, or if that court is unable to exercise jurisdiction for any reason, to the Superior Court of
Connecticut, the New Haven Judicial Branch, for this purpose and irrevocably waive any objection I now have or hereafter may have as to the venue of any such action brought under this Section. 

12. Miscellaneous. 
 (a) Covenants Reasonable. I expressly acknowledge and agree that the covenants set forth herein are reasonable in all respects, and necessary in order to protect, maintain and preserve the
value and goodwill of the Company, as well as the proprietary and other legitimate business interests of the Company. I further acknowledge and agree that the covenants and agreements set forth herein constitute a significant part of the
consideration given by me to the Company in exchange for the payment of my salary and benefits by the Company, and are a material reason for such payment. 

  
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 (b) Indemnification. I agree to indemnify and hold the Company harmless from
and against any and all damages, losses or expenses, including attorneys’ fees, relating to any breach by me of my obligations under this Agreement. 
 (c) At-Will Employment. I understand and acknowledge that this Agreement is not intended to, and shall not be construed as, creating a contract of employment for any specific duration.
Unless I have entered into a written employment contract signed by an officer of the Company providing otherwise, my employment with the Company remains “at-will”, meaning that either I or the Company may, at any time, terminate my
employment with or without cause and with or without notice. 
 (d) Validity. I agree that the invalidity or
unenforceability of any provision of this Agreement shall not affect the validity or enforceability of any other provision of this Agreement, which shall otherwise remain in full force and effect. Moreover, if any one or more of the provisions
contained in this Agreement is held to be excessively broad as to duration, scope or activity, I agree that such provisions shall be construed by limiting and reducing them so as to be enforceable to the maximum extent compatible with applicable
law. 
 (e) Waivers. The waiver by the Company or me of any right under this Agreement or of any failure to
perform or any breach by the other shall not be deemed a waiver of any other right under this Agreement or of any other failure or any other breach by such party, whether of the same or a similar nature or otherwise. No waiver shall be deemed to
have occurred unless set forth in writing executed by or on behalf of the waiving party. No such written waiver shall be deemed a continuing waiver unless specifically stated therein, and each such waiver shall operate only as to the specific term
or condition waived and shall not constitute a waiver of such term or condition for the future or as to any act other than that specifically waived. 
 (f) Governing Law. This agreement shall be governed by and construed in accordance with the laws of the State of Delaware without regard to its principles of conflicts of law. 

(g) Successors; Binding Agreement. This Agreement and the rights and obligations of the Company and me under this Agreement
shall inure to our benefit and to the benefit of our respective heirs, personal representatives, successors and assigns. I specifically agree that the Company may assign this Agreement to any successor. 

(h) Entire Agreement. This Agreement, and the Employment Agreement, set forth the entire agreement and understanding of the
Company and me with respect of its subject matter, and supersedes all prior agreements, promises, covenants, arrangements, communications, representations or warranties, whether oral or written, by any officer, executive or representative of either
party in respect of said subject matter. 
 (i) Headings Descriptive. The headings of the Sections of this
Agreement are inserted for convenience only and shall not in any way affect the meaning or construction of this Agreement. 

  
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 (j) Capacity. I represent and warrant that I am not a party to any agreement
that would prohibit me from entering into this Agreement or performing fully my obligations under this Agreement. 
  

					
	Date:	 	 March 19, 2010
	 	 /s/ Mark Leuchetenberger

		 		 	Signature
			
		 		 	  
 Mark
Leuchtenberger

  
 6Employee noncompetition, nondisclosure and developments, Robert A. Conerly

 Exhibit 10.38 
 EMPLOYEE NONCOMPETITION, 
 NONDISCLOSURE AND DEVELOPMENTS AGREEMENT

 This Employee Noncompetition, Nondisclosure and Developments Agreement (the “Agreement”) is entered into by
and between the undersigned employee and Rib-X Pharmaceuticals, Inc., its parents, affiliates and subsidiaries (the “Company”). 
 NOW THEREFORE, in consideration of my employment by the Company and of the covenants herein, my employment with the Company, and for other good and valuable consideration, I hereby covenant and agree as
follows: 
 1. Best Efforts. During the period of my employment by the Company, I shall devote my full time and best
efforts to the business of the Company, and I shall neither pursue any business opportunity outside the Company nor take any position with any organization other than the Company without the written approval of the Chief Executive Officer or her
designee. 
 2. Noncompetition. During the period of my employment by the Company, I shall not, directly or indirectly,
alone or as a consultant, partner, officer, director, employee, joint venturer, lender or stockholder of any entity, engage in any business or activity that is in competition with the products or services being created, developed, manufactured,
marketed, distributed or sold by the Company in (a) the State of Connecticut, (b) the States of New York, Massachusetts and Connecticut, (c) the continental United States of America, (d) the United States and Europe or
(e) worldwide. For one year following the termination of my employment, regardless of the reasons for my termination, I will refrain from management of or participation in research programs at or on behalf of any entity in areas related to
antimicrobials targeted to the ribosome and in areas related to specific chemical approaches or series the Company is engaged in during my employment or in which the Company is planning to engage or has in the past engaged. In the case of areas of
business unrelated to antimicrobials, for one year following the termination of my employment, regardless of the reasons for my termination, I will refrain from management of or participating in any such non-antimicrobial programs which are under
prosecution at the company, in which the Company is planning to engage or has in the past engaged in. 
 3. Nonsolicitation
of Customers. During the period of my employment by the Company and for one year following the termination of my employment, regardless of the reasons for my termination, I shall not, directly or indirectly, alone or as a consultant, partner,
officer, director, employee, joint venturer, lender or stockholder of any entity, solicit or do business with any customer of the Company or any potential customer of the Company (i) with whom I have had contact or (ii) about whom I
obtained information, or became familiar with through Confidential Information (as defined in-Paragraph 5), during the course of my employment with the Company. 
 4. Nonsolicitation of Employees. 
 (a) During the period of my employment
by the Company and for one year following the termination of my employment, regardless of the reasons for the termination, I will not, in any manner, hire or engage, or assist any company or business organization by which I am employed or which is
directly or indirectly controlled by me to hire or engage, any person who is or was employed by the Company (or is or was an agent, representative, contractor, project consultant or consultant of the Company) at the time of my termination.

 (b) During the period of my employment by the Company and for one year following the
termination of my employment, regardless of the reasons for the termination, I will not, in any manner, solicit, recruit or induce, or assist any company or business organization by which I am employed or which is directly or indirectly controlled
by me to solicit, recruit or induce, any person who is or was employed by the Company (or is or was an agent, representative, contractor, project consultant or consultant of the Company) at the time of my termination, to leave his or her employment,
relationship or engagement with the Company. 
 5. Nondisclosure. I shall not at any time, whether during or after the
termination of my employment, reveal to any person or entity any Confidential Information except to employees of the Company who need to know such Confidential Information for the purposes of their employment, or as otherwise authorized by the
Company in writing. The term “Confidential Information” shall include any information concerning the organization, business or finances of the Company or of any third party which the Company is under an obligation to keep confidential that
is maintained by the Company as confidential. Such Confidential Information shall include, but is not limited to, trade secrets or confidential information respecting inventions, products, designs, methods, know-how, techniques, systems, processes,
specifications, blueprints, engineering data, software programs, works of authorship, customer lists, customer information, financial information, pricing information, personnel information, business plans, projects, plans and proposals. I shall
keep confidential all matters entrusted to me and shall not use or attempt to use any Confidential Information except as may be required in the ordinary course of performing my duties as an employee of the Company, nor shall I use any Confidential
Information in any manner which may injure or cause loss or may be calculated to injure or cause loss to the Company, whether directly or indirectly. 
 6. Assignment of Developments. 
 (a) If at any time or times during my
employment, I shall (either alone or with others) make, conceive, create, discover, invent or reduce to practice any Development that (i) relates to the business of the Company or any customer of or supplier to the Company or any of the
products or services being developed, manufactured or sold by the Company or which may be used in relation therewith; or (ii) results from tasks assigned to me by the Company; or (iii) results from the use of premises or personal property
(whether tangible or intangible) owned, leased or contracted for by the Company, then all such Developments and the benefits thereof are and shall immediately become the sole and absolute property of the Company and its assigns, as works made for
hire or otherwise. The term “Development” shall mean any invention, modification, discovery, design, development, improvement, process, software program, work of authorship, documentation, formula, data, technique, know-how, trade secret
or intellectual property right whatsoever or any interest therein (whether or not patentable or registrable under copyright, trademark or similar statutes (including, but not limited to, the Semiconductor Chip Protection Act) or subject to analogous
protection). I shall promptly disclose to the Company (or any persons designated by it) each such Development. I hereby assign all rights (including, but not limited to, rights to inventions, patentable subject matter, copyrights and trademarks) I
may have or may acquire in the Developments and all benefits and/or rights resulting therefrom to the 
  
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Company and its assigns without further compensation and shall communicate, without cost or delay, and without disclosing to others the same, all available information relating thereto (with all
necessary plans and models) to the Company. 
 (b) Excluded Developments. I represent that the Developments identified in
the Appendix, if any, attached hereto comprise all the Developments that I have made or conceived prior to my employment by the Company and that are owned or controlled by me, which Developments are excluded from this Agreement. I understand that it
is only necessary to list the title of such Developments and the purpose thereof but not details of the Development itself. IF THERE ARE ANY SUCH DEVELOPMENTS TO BE EXCLUDED, THE UNDERSIGNED SHOULD INITIAL HERE; OTHERWISE IT WILL BE DEEMED THAT
THERE ARE NO SUCH EXCLUSIONS.             . 
 7.
Further Assurances. I shall, during my employment and at any time thereafter, at the request and cost of the Company, promptly sign, execute, make and do all such deeds, documents, acts and things as the Company and its duly authorized
officers may reasonably require: 
 (a) to apply for, obtain, register and vest in the name of the Company alone
(unless the Company otherwise directs) patents, copyrights, trademarks or other analogous protection in any country throughout the world relating to a Development and when so obtained or vested to renew and restore the same; and 

(b) to defend any judicial, opposition or other proceedings in respect of such applications and any judicial, opposition
or other proceeding, petition or application for revocation of any such patent, copyright, trademark or other analogous protection. 
 If the Company is unable, after reasonable effort, to secure my signature on any application for patent, copyright, trademark or other analogous protection or other documents regarding any legal
protection relating to a Development, whether because of my physical or mental incapacity or for any other reason whatsoever, I hereby irrevocably designate and appoint the Company and its duly authorized officers and agents as my agent and
attorney-in-fact, to act for and in my behalf and stead to execute and file any such application or applications or other documents and to do all other lawfully permitted acts to further the prosecution and issuance of patent, copyright or trademark
registrations or any other legal protection thereon with the same legal force and effect as if executed by me. 
 8.
Employment At Will. I understand that this Agreement does not constitute an implied or written employment contract and that my employment with the Company is on an “at-will” basis. Accordingly, I understand that either the Company
or I may terminate my employment at any time, for any or no reason, with or without prior notice. 
 9. Severability. I
hereby agree that each provision and the subparts of each provision herein shall be treated as separate and independent clauses, and the unenforceability of any one clause shall in no way impair the enforceability of any of the other clauses of the
Agreement. Moreover, if one or more of the provisions contained in this Agreement shall for any reason be held to be excessively broad as to scope, activity, subject or otherwise so as to be unenforceable 

 
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at law, such provision or provisions shall be construed by the appropriate judicial body by limiting or reducing it or them, so as to be enforceable to the maximum extent compatible with the
applicable law as it shall then appear. I hereby further agree that the language of all parts of this Agreement shall in all cases be construed as a whole according to its fair meaning and not strictly for or against either of the parties.

 10. Amendments; Waiver. Any amendment to or modification of this Agreement, or any waiver of any provision hereof,
shall be in writing and signed by the Company. Any waiver by the Company of a breach of any provision of this Agreement shall not operate or be construed as a waiver of any subsequent breach of such provision or any other provision hereof.

 11. Survival. This agreement shall be effective as of the date entered below. My obligations under this Agreement
shall survive the termination of my employment regardless of the manner of such termination and shall be binding upon my heirs, executors, administrators and legal representatives. 

12. Assignment. The Company shall have the right to assign this Agreement to its successors and assigns, and all covenants and
agreements hereunder shall inure to the benefit of and be enforceable by said successors or assigns. I may not assign this Agreement. 
 13. Representations. 
 (a) I represent that my employment with the Company
and my performance of all of the terms of this Agreement do not and will not breach any agreement to keep in confidence proprietary information acquired by me in confidence or in trust prior to my employment by the Company. I have not entered into,
and I shall not enter into, any agreement either written or oral in conflict herewith. I agree that in the course of my employment with the Company, if the Company requests that I undertake activities that will cause me to use Confidential
Information of my prior employer, I will inform the Company of that fact. 
 (b) I agree that the restrictions set forth in
paragraph 2 hereof are reasonable and necessary to protect specific business interests of the Company. I agree that any breach of this Agreement by me will cause irreparable damage to the Company and that in the event of such breach the Company
shall have, in addition to any and all remedies of law, the right to an injunction, specific performance or other equitable relief to prevent the violation of my obligations hereunder. The Company may apply for such injunctive relief in any court of
competent jurisdiction without the necessity of posting any bond or other security. 
 14. Governing Law; Forum Selection
Clause. This Agreement and any claims arising out of this Agreement (or any other claims arising out of the relationship between the parties) shall be governed by and construed in accordance with the laws of the State of Connecticut and shall in
all respects be interpreted, enforced and governed under the internal and domestic laws of such state, without giving effect to the principles of conflicts of laws of such state. Any claims or legal actions by one party against the other shall be
commenced and maintained in any state or federal court located in such state, and I hereby submit to the jurisdiction and venue of any such court. 
  

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 15. Entire Agreement. This Agreement sets forth the complete, sole and entire
agreement between the parties on the subject matter herein and supersedes any and all other agreements, negotiations, discussions, proposals, or understandings, whether oral or written, previously entered into, discussed or considered by the
parties. 
 IN WITNESS WHEREOF, the undersigned has executed this Agreement as a sealed instrument as of the date first above
written. 
  

	
	/s/ Robert A. Conerly
	
	Robert A. Conerly
	Name: (Please Print)
	
	Date: 6/11/02

  

			
		
	Address:	 	 
		
		 	 

  
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 APPENDIX — TITLE/PURPOSE OF DEVELOPMENTS 

The following is a complete list of all Developments owned or controlled by me and the purpose of those Developments: 

            
        No Developments 

            
        See Below 
 Developments and purpose: 

 

			
	  
	  	
	  
	  	
	  
	  	
	  
	  	
	  
	  	
	  
	  	

  
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