6-O-SUBSTITUTED MACROLIDES HAVING ANTIBACTERIAL ACTIVITY

Abstract: The instant invention provides novel macrolide compounds and compositions useful in treating bacterial infections. Also provided are processes for preparing same. These macrolides are substituted on the 6-O-position with X'-Y'-Z', wherein X' is selected from the group consisting of C1-C10 alkyl, C3-C10 alkenyl, and C3-C10 alkynyl; Y' and Z' are independently selected from the group consisting of: (c) optionally substituted aryl, and (d) optionally substituted heteroaryl, with the proviso that both Y' and Z' are not both phenyl, and with the further proviso that Y' is not isoxazole when Z' is thiophenyl.

Description: 6 -O-SUBSTITUTED MACROLIDES HAVING ANTIBACTERIAL ACTIVITY Technical Field This invention relates to novel macrolide compounds having antibacterial activity, to pharmaceutical compositions comprising these compounds, to methods of treating bacterial infections using said compounds, and to methods of making these novel compounds . Background of the Invention Erythromycins A through D are represented by the following formula: Erythromycin R' R A - OH - CH 3 B -H - CH 3 C - OH - H D -H -H and are well-known and potent antibacterial agents. These compounds are used widely to treat and prevent bacterial infection. As with other antibacterial agents, however, bacterial strains having resistance or insufficient susceptibility to erythromycin have been identified. Erythromycin A has only weak activity against Gram-negative bacteria. Therefore, there is a continuing need to identify new macrolide compounds which possess improved antibacterial activity, which have less potential for developing resistance, which possess the desired Gram-negative activity, and/ or which possess unexpected selectivity against target microorganisms. Consequently, numerous investigators have prepared chemical derivatives of erythromycin m an attempt to obtain analogs having modified or improved profiles of antibiotic activity. United States Pat. No. 5,444,051 discloses 6-0- substituted-3-oxoerythromycm A derivatives m which the substituents are selected from alkyl, -C0NH 2 , -CONHC(O) alkyl and -CONHS0 2 alkyl . WO 97/10251, published March 20, 1997, discloses 6-0-methyl 3-descladmose erythromycin derivatives. European Patent Application 596802, published May 11, 1994, discloses bicyclic 6-0- methyl-3 -oxoerythromycm A derivatives. WO 92/09614, published June 11, 1992, discloses tπcyclic 6-0- ethylerythromycm A derivatives. Summary of the Invention The present invention relates to compounds selected from the group consisting of a compound of formula I I; a compound of formula II ii; and a compound of formula III or a pharmaceutically acceptable salt, solvate, ester or prodrug thereof, wherein either: (a) Y and Z taken together define a group X, and X is selected from the group consisting of (1) =0, (2) =N-0H, (3) =N-0-R 1 where R 1 is selected from the group consisting of (a) unsubstituted C; L -C I2 alkyl, (b) Cχ-C. 12 alkyl substituted with aryl, (c) C 1 -C 12 alkyl substituted with substituted aryl, (d) Cι-C 12 alkyl substituted with heteroaryl , (e) Cι-Cι 2 alkyl substituted with substituted heteroaryl, (f) C 3 -Cι 2 cycloalkyl, and (g) -Si-(R 2 ) (R 3 ) (R 4 ) wherein R 2 , R 3 and R 4 are each independently selected from Cι-Cι 2 alkyl and aryl ; and (4) =N-0-C(R 5 ) (R^-O-R 1 where R 1 is as previously defined and R 5 and R 6 are each independently selected from the group consisting of (a) hydrogen, (b) unsubstituted C 1 -C 12 alkyl, (c) Ci-Ci 2 alkyl substituted with aryl, (d) C 1 -C 12 alkyl substituted with substituted aryl, (e) C 1 -C 12 alkyl substituted with heteroaryl , and (f) C 1 -C 12 alkyl substituted with substituted heteroaryl, or R 5 and R 6 taken together with the atom to which they are attached form a C 3 -Cι 2 cycloalkyl ring; or (b) one of Y and Z is hydrogen and the other is selected from the group consisting of (1) hydrogen, (2 ) hydroxy , (3) protected hydroxy, and (4) NR 7 R 8 wherein R 7 and R 8 are independently selected from hydrogen and Cι-C 6 alkyl, or R 7 and R 8 are taken with the nitrogen atom to which they are connected to form a 3- to 7-membered ring which, when the ring is a 5- to 7-membered ring, may optionally contain a hetero function selected from the group consisting of -0- , -NH- , -N(Cι-C 6 -alkyl-) -, -N(aryl)-, -N (aryl-d-Ce-alkyl-) - , -N(substιtuted-aryl-C 1 -C 6 -alkyl-) - , - (heteroaryl) - , -N (heteroaryl-Cι-C e -alkyl - ) - , -N ( substituted-πeteroaryl - C ι -C 6 -alkyl-) - , and -S- or -S(0) n -, wherein n is 1 or 2; R a is hydrogen or hydroxy; R b is hydrogen or a hydroxy protecting group; L is methylene or carbonyl, provided that when L is methylene, T is -O- ; T is selected from the group consisting of -O- , -NH-, and -N (W-R d ) - , wherein W is absent or is selected from the group consisting of -O- , -NH-CO-, -N=CH- and -NH- , and R d is selected from the group consisting of (1) hydrogen, (2) Ci-Cg-alkyl optionally substituted with one or more substituents selected from the group consisting of (a) aryl, (b) substituted aryl, (c) heteroaryl, (d) substituted heteroaryl, (e ) hydroxy , (f) C x -C 6 -alkoxy, (g) NR 7 R 8 , wherein R 7 and R 8 are as defined previously, and (h) -CH 2 -M-R 9 , wherein M is selected from the group consisting of: (ι) -C(O) -NH-, (n) -NH-C(O)-, (ill) -NH-, (iv) -N=, (v) -N(CH 3 ) -, (vi) -NH-C(O) -O- (vii) -NH-CJO) -NH- (viii) -0-C(0) -NH- (ix) -0-C(0) -0- (x) -0-, (xi) -S(0) n -. wherein n is 0, 1 or 2, (xii) -C(0)-0-, (xiii) -O-C(O)-, and (xiv) -C(O)-; and wherein R 9 is selected from the group consisting of : (i) Cx-Ce alkyl, optionally substituted with a substituent selected from the group consisting of (aa) aryl, (bb) substituted aryl, (cc) heteroaryl, and (dd) substituted heteroaryl; (ii) aryl, (iii) substituted aryl, (iv) heteroaryl, (v) substituted heteroaryl, and (vi) heterocycloalkyl ; (3) C 3 -C 7 cycloalkyl, (4) aryl, (5) substituted aryl, (6) heteroaryl, and (7) substituted heteroaryl; X' is selected from the group consisting of C ι -C ι0 alkyl, C 3 -Ci 0 alkenyl, and C 3 -C ι0 alkynyl; Y' and Z' are independently selected from the group consisting of: (a) optionally substituted aryl, and (b) optionally substituted heteroaryl, with the proviso that both Y' and Z' are not both phenyl, and with the further proviso that Y' is not isoxazole when Z' is thiophenyl ; and A, B, D and E are independently selected from the group consisting of: (a) hydrogen ; (b) Cι-C 6 alkyl, optionally substituted with one or more substituents selected from the group consisting of: ( l ) aryl ; (ii) substituted aryl; (in) heteroaryl; (iv) substituted heteroaryl; (v) heterocycloalkyl ; (vi) hydroxy; (vii) Cι-C 6 alkoxy; (vm) halogen consisting of Br, Cl , F or I ; and (IX) NR 7 R 8 , wherein R 7 and R 8 are as previously defined; (c ) C 3 - C 7 cycloalkyl ; (d) aryl; (e) substituted aryl; (f) heteroaryl; (g) substituted heteroaryl; (h) heterocycloalkyl ; and d) a group selected from option (b) above further substituted with -M-R 9 , wherein M and H are as previously defined, with the proviso that at least two of A, B, D and E are hydrogen, ; or any one pair of substituents, consisting of AB, AD, AE, BD, BE or DE, is taken together with the atom or atoms to which they are attached to form a 3- to 7- me bered ring optionally containing a hetero function selected from the group consisting of -O- , -NH- , -N(Cι-C 6 alkyl-) -, -N (aryl-Cι-C 6 alkyl- )- , -N (substituted aryl-Ci-Cg alkyl-) - , -N (heteroaryl-Cx-Cg alkyl-) - , -N (substituted heteroaryl- Cχ-C 3 alkyl- )- , -S- or -S(0) n -, wherein n is 1 or 2, -C(0)-NH, -C(0)-NR 12 -, wherein R 12 is selected from the group consisting of hydrogen, Cι-C 3 alkyl, Cι-C 3 alkyl substituted with aryl, substituted aryl, heteroaryl, or substituted heteroaryl, -NH-C(O)-, and -NR 12 -C(0) - . The present invention also relates to pharmaceutical compositions containing a pharmaceutically effective amount of a compound of formulae I, II or III as defined above m combination with a pharmaceutically acceptable carrier . The present invention further relates to processes for preparing compounds of formulae I, II, or III. The invention still further relates to methods of treating bacterial infections m a host mammal m need of such treatment comprising administering to said mammal a therapeutically effective amount of a compound of formula I, II, or III as defined above. Detailed Description of the Invention As used throughout the specification and the claims, the following terms have the meanings specified. The terms "Cι-C 3 alkyl " , "Cx-Ce alkyl " , and "C ι -C ι2 alkyl" as used herein refer to saturated, straight, or branched chain hydrocarbon radicals derived from a hydrocarbon moiety containing between one and three, one and six, and one and twelve carbon atoms, respectively, by removal of a single hydrogen atom. Examples of Cι-C 3 alkyl radicals include methyl, ethyl, propyl , and isopropyl, examples of Cι-C 6 alkyl radicals include methyl, ethyl, propyl, isopropyl, n-butyl, tert-butyl, neopentyl , and n-hexyl . Examples of C1-C12 alkyl radicals include all the foregoing examples, as well as n-neptyl, n-octyl, n-nonyl, n-decyl, n-undecyl, and n-docecyl . The term "Cι-C 6 alkoxy" as used herein refers to an Cι-C 6 alkyl group, as previously defined, attached to the parent molecular moiety through an oxygen atom. Examples of Cι-C 6 alkoxy include methoxy, ethoxy, propoxy, isopropoxy, n-butoxy, tert-butoxy, neopentoxy and n- hexoxy . The term "C 3 -C ι2 alkenyl" denotes a onovalent or divalent group derived from a hydrocarbon moiety containing from two to twelve carbon atoms and having at least one carbon-carbon double bond by the removal of a single hydrogen atom. Alkenyl groups include propenyl , butenyl, 1 -methyl -2 -buten-1-yl , and the like. The term "C 3 -C ι2 alkynyl" as used herein refers to a monovalent or divalent group derived from a hydrocarbon containing from two to twelve carbon atoms and having at least one carbon-carbon triple bond by the removal of a single hydrogen atom. Representative alkynyl groups include 2-propynyl (propargyl), 1-propynyl, and the like. The term "alkylene" denotes a divalent group derived from a straight or branched chain saturated hydrocarbon by the removal of two hydrogen atoms, for example methylene, 1 , 2 -ethylene, 1 , 1-ethylene, 1 , 3 -propylene, 2 , 2-dιmethylpropylene, and the like. The term "Cl-C3-alkylammo" as used herein refers to one or two C1-C3 -alkyl groups, as previously defined, attached to the parent molecular moiety through a nitrogen atom. Examples of C1-C3 -alkylamino include methylammo, dimethylammo, ethylammo, diethylammo, and propylammo . The term "oxo" denotes a group wherein two hydrogen atoms on a single carbon atom m an alkyl group as defined above are replaced with a single oxygen atom (for example, a carbonyl group) . The term "aprotic solvent" as used herein refers to a solvent that is relatively inert to proton activity, for example, not acting as a proton-donor. Examples include hydrocarbons , such as hexane and toluene , for example, halogenated hydrocarbons, such as, for example, methylene chloride, ethylene chloride, chloroform, and the like, heteroaryl compounds, such as, for example, tetrahydrofuran and N-methylpyrrolidmone, and ethers such as diethyl ether, bis-methoxymethyl ether. Such compounds are well known r-.o those skilled m the art, and it will be obvious to those skilled m the art that individual solvents or mixtures thereof may be preferred for specific compounds and reaction conditions, depending upon such factors as the solubility of reagents, reactivity of reagents and preferred temperature ranges, for example. Further discussions of aprotic solvents may be found m organic chemistry textbooks or m specialized monographs, for example: Organic Solvents Physical Properties and Methods of Purification, 4th ed., edited by John A. Riddick et al . , Vol. II, m the Techniques of Chemistry Series. John Wiley & Sons, NY, 1986. The term "aryl" as used herein refers to a mono- or bicyclic carbocyclic ring system having one or two aromatic rings including phenyl, naphthyl , tetrahydronaphthyl , mdanyl , mdenyl , and the like. Aryl groups (including bicyclic aryl groups) can be unsubstituted or substituted with one, two or three substituents independently selected from loweralkyl, substituted loweralkyl, haloalkyl, alkoxy, thioalkoxy, ammo, alkylamino, dialkylamino, acylammo, cyano, hydroxy, halo, mercapto, nitro, carboxaldehyde, carboxy, alkoxycarbonyl and carboxamide . In addition, substituted aryl groups include tetrafluorophenyl and pentafluorophenyl . The term "C3-C12-cycloalkyl " denotes a monovalent group derived from a monocyclic or bicyclic saturated carbocyclic ring compound by the removal of a single hydrogen atom. Examples include cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, bicyclo [2.2.1] heptyl , and bicyclo [2.2.2] octyl . The terms "halo" and "halogen" as used herein refer to an atom selected from fluorine, chlorine, bromine and iodine . The term "alkylamino" refers to a group having the structure -NHR 1 , wherein R τ is alkyl, as previously defined Examples of alkylamino include methylam o, ethylammo, lso-propylammo, and the like. The term "dialkylamino" refers to a group having the structure -NR'R" wherein R' and R" are independently selected from alkyl, as previously defined. Additionally, R 1 and R" taken together may optionally be -(CH2)k- where k is an integer of from 2 to 6. Examples of dialkylamino include, dimethylammo, diethylammocarbonyl , methylethylammo, piperidmo, and the like. The term "haloalkyl" denotes an alkyl group, as defined above, having one, two, or three halogen atoms attached thereto and is exemplified by such groups as chloromethyl , bromoethyl , tπfluoromethyl , and the like. The term "alkoxycarbonyl " represents an ester group, for example, an alkoxy group, attached to the parent molecular moiety through a carbonyl group such as methoxycarbonyl , ethoxycarbonyl , and the like. The term "thioalkoxy" refers to an alkyl group as previously defined attached to the parent molecular moiety through a sulfur atom. The term "carboxaldehyde" as used herein refers to a group of formula -CHO. The term "carboxy" as used herein refers to a group of formula -C02H. The term "carboxamide" as used herein refers to a group of formula -CONHR'R" wherein R' and R" are independently selected from hydrogen or alkyl, or R' and R" taken together may optionally be -(CH2)k-, where k is an integer from 2 to 6. The term "heteroaryl", as used herein, refers to a cyclic aromatic radical having from five to ten ring atoms of which one ring atom is selected from S, O and N; one, two, or three ring atoms may be additional heteroatoms independently selected from S, 0 and N; and the remaining ring atoms are carbon, the radical being joined to the rest of the molecule via any of the ring atoms, such as, for example, pyπdyl , pyrazmyl, pyrimidmyl, pyrrolyl , pyrazolyl, l idazolyl , thiazolyl, oxazolyl , isooxazolyl, thiadiazolyl , oxadiazolyl, tetrazolyl, thiophenyl , furanyl , qumol yl, lsoqumolmyl , and the like. The term "heterocycloalkyl " as used herein, refers to a non-aromatic partially unsaturated or fully saturated 3- to 10-membered ring system, which includes single rings of 3 to 8 atoms m size and bi- or tri- cyclic ring systems which may include aromatic six- membered aryl or heteroaryl rings fused to a non-aromatic ring. These heterocycloalkyl rings include those having from one to three heteroatoms independently selected from oxygen, sulfur and nitrogen, m which the nitrogen and sulfur heteroatoms may optionally be oxidized and the nitrogen heteroatom may optionally be quaternized. Representative heterocycles include pyrrolidmyl , pyrazolmyl, pyrazolid yl , lmidazol yl , lmidazolidmyl , piperidmyl, piperazmyl, oxazolidmyl , isoxazolidinyl , morpholmyl, thiazolidmyl , isothiazolidinyl , and tetrahydrofuryl . Specific heterocycloalkyl rings include 3- methylpipeπdme, 4- (diphenylmethyl) piperazme, 4- (2- (bis- (2 -propenyl ) ammo) ethyl) piperazme , 4 - (2 - (diethylammo) ethyl ) piperazme, 4- (2- chlorophenyl ) piperazme , 4 - ( 3 , 4 - dimethoxyphenyl) piperazme, 4- (4 -nitrophenyl ) piperazme , 4- (4-trifluoromethylphenyl) piperazme, 4-hydroxy-4- phenylpiperidme, 4 -hydroxypyrrolidme , 4- methylpiperazme, 4-phenylpιperazme, 4- pipeπdmylpiperazme, 4- ( (2-furanyl) carbonyl ) piperazme, 4- ( (1 , 3-dιoxolan-5-yl) methyl) piperazme, 6-fluoro- 1, 2 , 3 , 4-tetrahydro-2-methylqumolme, 1,4- diazacycloheptane , 2 , 3 -dihydromdolyl , 3,3- dimethylpipeπdme , 1,2,3, 4 -tetrahydroisoqumolme , 1,2,3,4 -1etrahydroqumolme , azacyclooctane , decahydroqumolme, piperazme, piperidme, pyrrolidme, thiomorphol e, tπazole, and the like. The term "heteroarylalkyl " as used herein, refers to a heteroaryl group as defined above attached to the parent molecular moiety through an alkylene group wherein the alkylene group is of one to four carbon atoms. "Hydroxy-protectmg group", as used herein, refers to an easily removable group which is known m the art to protect a hydroxyl group against undesirable reaction during synthetic procedures and to be selectively removable. The use of hydroxy-protectmg groups is well known in the art for protecting groups against undesirable reactions during a synthetic procedure and many such protecting groups are known, cf., for example, Greene and Wuts, Protective Groups m Organic Synthesis, 2nd edition, John Wiley & Sons, New York (1991) . Examples of hydroxy-protectmg groups include methylthiomethyl, tert-dimethylsilyl , tert- butyldiphenylsilyl, ethers such as methoxymethyl , and esters including acetyl benzoyl , and the like. The term "ketone protecting group", as used herein, refers to an easily removable group which is known m the art to protect a ketone group against undesirable reactions during synthetic procedures and to be selectively removable. The use of ketone-protectmg groups is well known m the art for protecting groups against undesirable reactions during a synthetic procedure and many such protecting groups are known. See, for examples, Greene and Wuts, Protective Groups m Organic Synthesis. 2nd edition, John Wiley & Sons, New York (1991) . Examples of ketone-protectmg groups include ketals, oximes, O-substituted oximes for example O-benzyl oxime, O-phenylthiomethyl oxime, 1- isopropoxycyclohexyl oxime, and the like. The term "protected-hydroxy" refers to a hydroxy group protected with a hydroxy protecting group, as defined above, including benzoyl, acetyl, trimethylsilyl , tπethylsilyl, methoxymethyl groups, for example. The term "substituted aryl" as used herein refers to an aryl group as defined herein substituted by independent replacement of one, two or three of the hydrogen atoms thereon with Cl , Br, F, I, OH, CN, Ci-C 3 alkyl, C ι -C 6 alkoxy, Cι-C 6 alkoxy substituted with aryl, haloalkyl, thioalkoxy, ammo, alkylamino, dialkylamino, mercapto, nitro, carboxaldehyde, carboxy, alkoxycarbonyl and carboxamide. In addition, any one substitutent may be an aryl, heteroaryl, or heterocycloalkyl group. Substituted aryl groups also include tetrafluorophenyl and pentafluorophenyl . The term "substituted heteroaryl" as used herein refers to a heteroaryl group as defined herein substituted by independent replacement of one, two or three of the hydrogen atoms thereon with Cl , Br, F, I, OH, CN, C1-C3 alkyl, Cι-C 6 alkoxy, Cι-C 6 alkoxy substituted with aryl, haloalkyl, thioalkoxy, ammo, alkylamino, dialkylamino, mercapto, nitro, carboxaldehyde, carboxy, alkoxycarbonyl and carboxamide . In addition, any one substitutent may be an aryl, heteroaryl, or heterocycloalkyl group. The term "substituted heterocycloalkyl" as used herein, refers to a heterocycloalkyl group, as defined above, substituted by independent replacement of one, two or three of the hydrogen atoms thereon with Cl , Br, F, I, OH, CN, Cι-C 3 alkyl, Cι-C 6 alkoxy, Cι-C 6 alkoxy substituted with aryl, haloalkyl, thioalkoxy, ammo, alkylamino, dialkylamino, mercapto, nitro, carboxaldehyde, carboxy, alkoxycarbonyl and carboxamide. In addition, any one substitutent may be an aryl, heteroaryl, or heterocycloalkyl group. Numerous asymmetric centers may exist m the compounds of the present invention. Except where otherwise noted, the present invention contemplates the various stereoisomers and mixtures thereof. Accordingly, whenever a bond is represented by a wavy line, it is intended that a mixture of stereoorientations or an individual isomer of assigned or unassigned orientation may be present. Preferred for the practice of the instant invention are those compounds of formulae I, II, and III wherein X', Y' , and Z' combine to form a group R, and R is selected from the group consisting of - (CH 2 ) -C≡C- (5- (2-pyπdyl) -2-thιenyl) , - (CH 2 ) -C≡C- (5- (3-pyrιdyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- 4 -pyridyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- 5-pyπmιdmyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- 2-pyrιmιdmyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- 2-pyrazmyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- 5-cyano-3 -pyridyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- 5-carboxamιdo-3-pyπdyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- 5-ethoxycarbonyl-3-pyπdyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- 5-N, N-dιmethylcarboxamιdo-3 -pyridyl) -2 - thienyl) , - (CH 2 ) -C≡C- 5- (5-N' ,N' -dιmethylhydrazιdocarbonyl-3 - pyπdyl ) -2 ■ thienyl) , - (CH 2 ) -C≡C- 5- (phenyl) -2 -thienyl) , - (CH 2 ) -C≡C- 5- (3-methoxyphenyl) -2 -thienyl) , - (CH 2 ) -C≡C- 5- (3 -fluorophenyl) -2 -thienyl) , - (CH 2 ) -C≡C- 5- (3-chlorophenyl) -2 -thienyl) , - (CH 2 ) -C≡C- 5- (3 , 5-dιchlorophenyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- (3-methylphenyl) -2 -thienyl) , - (CH 2 ) -C≡C- 5- (3-trιfluoromethylphenyl) -2 -thienyl) , - (CH 2 ) -C≡C- 5- (3-acetamιdophenyl) -2 -thienyl) , - (CH 2 ) -C≡C- 5- (3-nιtrophenyl) -2-thιenyl) , - (CH 2 ) -C≡C- 5- (4 -fluorophenyl) -2 -thienyl) , - (CH 2 ) -C≡C- 5- (2-furanyl) -2 -thienyl) , - (CH 2 ) -C≡C- 4 - (5 - formyl -2 - furanyl ) henyl ) , - (CH 2 ) -C≡C- 4 - (5 - formyl -2 - furanyl ) phenyl ) , - (CH 2 ) -C≡C- 4 - (5 - formyl -2 - furanyl ) phenyl ) , - (CH 2 ) -C≡C- 2,2' -bisthienyl ) , - (CH 2 ) -C≡C- 2- (5-chloro-2-thιenyl) thienyl) , - (CH 2 ) -C≡C- 2,3' -bis (thienyl) ) , - (CH 2 -C≡C- (5- (2-thιazolyl) -2 -thienyl) , - (CH 2 -C≡C- (5- (5-thιazolyl) -2 -thienyl) , - (CH 2 ■ C≡C- (5- (4-thιazolyl) -2-thιenyl) , - (CH 2 -C≡C- (5- (2-methyl-5-thιazoyl) -2-thιenyl) , - (CH 2 -C≡C- (5- (1 -methyl -2 -lmidazolyl) -2-thιenyl) , - (CH 2 -C≡C- (5- (2-qumoxalmyl) -2 -thienyl) , - (CH 2 -C≡C- (5- (2-benzothιophenyl) -2-thιenyl) , - (CH 2 -C≡C- (5- (2 -pyridyl) -2-thιenyl) , - (CH 2 -C≡C- (5- (2-benzothιophenyl) -2-thιenyl) , -C(H) =CH - (lH-ιmιdazol-1-yl) -3 -pyridyl) , -C(H) =CH- (3 furanyl) -6-qumolmyl) , -C(H) =CH- (5- (2 thienyl) -3 -pyridyl) , -C(H =CH- (5 -phenyl -3 -pyridyl) -C(H =CH- 5 - ( 2 -pyridyl ) - 3 -pyridyl ) , -C(H =CH- 5 - ( 3 -qumolmyl ) - 3 -pyridyl ) , -C(H =CH- 5- 5 -pyπmιdmyl ) - 3 -pyridyl ) , -C(H =CH- 5- 3 -pyridyl ) - 3 -pyridyl ) , -C(H =CH- 5- 4 - ιsoqumolmyl ) - 3 -pyridyl ) -C(H =CH- 5- 3 -thienyl) -3 -pyridyl) -C(H =CH- 5- 2-furyl) -3 -pyridyl) , -C(H =CH- 5- 2- (1, 3-thιazolyl) ) -3 -pyridyl) , -C(H =CH- 5- 2- (tnlmethylsilyl) -l,3-thιazol-5-yl) -3 ■ pyridyl) , -C(H)=CH- 5- 1, 3 -thiazolyl) -3 -pyridyl) , -C(H)=CH- 5- 2 -amino- (1 , 3 -thιazol-5-yl) ) -2 -thienyl) -C(H)=CH- 5- 2 -ammo- (1, 3-thιazo1-5-yl) ) -2-thιenyl) -C(H) =CH- 5- (3-pyrιdyl) -2- (1,3 -thiazolyl) ) , ■ C(]H)=CH- 2 3 -pyridyl) -5- (1, 3 -thiazolyl) ) , ■ C(]H) =CH- - (5-bromo-l,3-thιazol-2-yl) -5- (1,3 thiazolyl) ) 5-bromo- (1, 3 - thιazol-2-yl ) ) -5- (1,3- 5-bromo-l, 3 -thιazol-2 -yl) -5- (1,3- 2-thιenyl) -5-thιazolyl ) , 2-pyrazmyl ) -5- (1,3-thιazolyl) ) , 5-pyrιmιdιnyl) -5- (1 , 3 -thiazolyl) ) , 5- (l,3-thιazol-5-yl) -5- (1 , 3 -thiazolyl ) ) , 2-pyrιmιdmyl) -2 -thienyl) , 2-pyrazmyl) -2-thιenyl) , - (1, 3-thιazolyl) -2-thιenyl) , 4-pyrιmιdmyl) -2 -thienyl) , 3-pyrιdyl) -2- (1, 3 -thiazolyl) ) , 3-pyrιdyl) -2- (1, 3-thιazolyl) ) , 3 -pyridyl) -2- ( 1 , 3 -thiazolyl ) ) , -thienyl) -2- (1, 3 -thiazolyl) ) , -pyridyl) -2 -thienyl) , -pyrazmyl) -2 -thienyl) , -pyrιmιdmyl) -2 -thienyl) , ,4-dιchlorophenyl) -2 -thienyl) , -fluorophenyl) -2 -thienyl) , - (1, 3-thιazoyl) ) -2 -thienyl) , -bisthienyl) , -pyridyl) -2 -thienyl) , -thienyl) -2 -thienyl) , and -furanyl) -2 -thienyl) . As used herein, the term "pharmaceutically acceptable salt" refers to those salts which are, within the scope of sound medical judgment, suitable for use m contact with the tissues of humans and lower animals without undue toxicity, irritation, allergic response and the like, and are commensurate with a reasonable benefit/risk ratio. Pharmaceutically acceptable salts are well known m the art. For example, S. M. Berge, et al . describe pharmaceutically acceptable salts m detail m J " . Pharmaceu ti cal Sci ences , 66: 1-19 (1977) . The salts can be prepared m si tu during the final isolation and purification of the compounds of the invention, or separately by reacting the free base function with a suitable organic acid. Examples of pharmaceutically acceptable, nontoxic acid addition salts are salts of an ammo group formed with inorganic acids such as hydrochloric acid, hydrobromic acid, phosphoric acid, sulfuric acid and perchloric acid or with organic acids such as acetic acid, oxalic acid, maleic acid, tartaπc acid, citric acid, succmic acid or malonic acid or by using other methods used m the art such as ion exchange. Other pharmaceutically acceptable salts include adipate, algmate, ascorbate, aspartate, benzenesulfonate, benzoate, bisulfate, borate, butyrate, camphorate, camphorsulfonate, citrate, cyclopentanepropionate, digluconate, dodecylsulfate, ethanesulfonate, formate, fumarate, glucoheptonate, glycerophosphate, gluconate, hemisulfate, heptanoate, hexanoate, hydroiodide, 2- hydroxy-ethanesulfonate, lactobionate, lactate, laurate, lauryl sulfate, malate, maleate, malonate, methanesulfonate, 2-naphthalenesulfonate, nicotmate, nitrate, oleate, oxalate, palmitate, pamoate, pectinate, persulfate, 3-phenylpropιonate, phosphate, picrate, pivalate, propionate, stearate, succmate, sulfate, tartrate, thiocyanate, p-toluenesulfonate, undecanoate, valerate salts, and the like. Representative alkali or alkaline earth metal salts include sodium, lithium, potassium, calcium, magnesium, and the like. Further pharmaceutically acceptable salts include, when appropriate, nontoxic ammonium, quaternary ammonium, and amine cations formed using counterions such as halide, hydroxide, carboxylate, sulfate, phosphate, nitrate, loweralkyl sulfonate and aryl sulfonate. As used herein, the term "pharmaceutically acceptable ester" refers to esters which hydrolyze m vivo and include those that break down readily m the human body to leave the parent compound or a salt thereof. Suitable ester groups include, for example, those derived from pharmaceutically acceptable aliphatic carboxylic acids, particularly alkanoic, alkenoic, cycloalkanoic and alkanedioic acids, m which each alkyl or alkenyl moiety advantageously has not more than 6 carbon atoms. Examples of particular esters includes formates, acetates, propionates, butyrates, acrylates and ethylsuccmates . The term "pharmaceutically acceptable prodrugs" as used herein refers to those prodrugs of the compounds of the present invention which are, within the scope of sound medical judgment, suitable for use m contact with the tissues of humans and lower animals with undue toxicity, irritation, allergic response, and the like, commensurate with a reasonable benefit/risk ratio, and effective for their intended use, as well as the zwitteπonic forms, where possible, of the compounds of the invention. The term "prodrug" refers to compounds that are rapidly transformed m vivo to yield the parent compound of the above formula, for example by hydrolysis m blood. A thorough discussion is provided m T. Higuchi and V. Stella, Pro-drugs as Novel Delivery Systems , Vol. 14 of the A.C.S. Symposium Series, and m Edward B. Roche, ed., Bioreversible Carriers m Drug Design, American Pharmaceutical Association and Pergamon Press, 1987. Representative compounds of the present invention were assayed m vi tro for antibacterial activity as follows . Twelve petπ dishes containing successive aqueous dilutions of the test compound mixed with 10 mL of sterilized Brain Heart Infusion (BHI) agar (Difco 0418-01-5) were prepared. Each plate was inoculated with 1:100 (or 1:10 for slow-growing strains, such as Micrococcus and Streptococcus) dilutions of up to 32 different microorganisms, using a Steers replicator block. The inoculated plates were incubated at 35-37 °C for 20 to 24 hours. In addition, a control plate, using BHI agar containing no test compound, was prepared and incubated at the beginning and end of each test . An additional plate containing a compound having known susceptibility patterns for the organisms being tested and belonging to the same antibiotic class as the test compound was also prepared and incubated as a further control, as well as to provide test -to-test comparability. Erythromycin A was used for this purpose. After incubation, each plate was visually inspected. The minimum inhibitory concentration (MIC) was defined as the lowest concentration of drug yielding no growth, a slight haze, or sparsely isolated colonies on the inoculum spot as compared to the growth control . The results of this assay, shown below m Table 1, demonstrate the antibacterial activity of the compounds of the invention. Table 1 MIC's of Selected Compounds Table 1, continued Table 1, continued The pharmaceutical compositions of the present invention comprise a therapeutically effective amount of a compound of the present invention formulated together with one or more pharmaceutically acceptable carriers As used herein, the term "pharmaceutically acceptable carrier" means a non-toxic, inert solid, semi-solid or liquid filler, diluent, encapsulating material or formulation auxiliary of any type. Some examples of materials which can serve as pharmaceutically acceptable carriers are sugars such as lactose, glucose and sucrose; starches such as corn starch and potato starch; cellulose and its derivatives such as sodium carboxymethyl cellulose, ethyl cellulose and cellulose acetate; powdered tragacanth; malt; gelatin; talc; excipients such as cocoa butter and suppository waxes; oils such as peanut oil, cottonseed oil; safflower oil; sesame oil; olive oil; corn oil and soybean oil; glycols; such a propylene glycol; esters such as ethyl oleate and ethyl laurate; agar; buffering agents such as magnesium hydroxide and aluminum hydroxide; algmic acid; pyrogen- free water; lsotomc saline; Ringer's solution; ethyl alcohol, and phosphate buffer solutions, as well as other non-toxic compatible lubricants such as sodium lauryl sulfate and magnesium stearate, as well as coloring agents, releasing agents, coating agents, sweetening, flavoring and perfuming agents, preservatives and antioxidants can also be present m the composition, according to the judgment of the formulator. The pharmaceutical compositions of this invention can be administered to humans and other animals orally, rectally, parenterally, mtracisternally, mtravagmally, intraperitoneally, topically (as by powders, ointments, or drops) , bucally, or as an oral or nasal spray. Liquid dosage forms for oral administration include pharmaceutically acceptable emulsions, microemulsions , solutions, suspensions, syrups and elixirs. In addition to the active compounds, the liquid dosage forms may contain inert diluents commonly used in the art such as, for example, water or other solvents, solubilizmg agents and emulsifiers such as ethyl alcohol, isopropyl alcohol, ethyl carbonate, ethyl acetate, benzyl alcohol, benzyl benzoate, propylene glycol, 1,3-butylene glycol, dimethylformamide, oils (in particular, cottonseed, groundnut, corn, germ, olive, castor, and sesame oils), glycerol, tetrahydrofurfuryl alcohol, polyethylene glycols and fatty acid esters of sorbitan, and mixtures thereof. Besides inert diluents, the oral compositions can also include adjuvants such as wetting agents, emulsifying and suspending agents, sweetening, flavoring, and perfuming agents. Injectable preparations, for example, sterile injectable aqueous or oleaginous suspensions may be formulated according to the known art using suitable dispersing or wetting agents and suspending agents. The sterile injectable preparation may also be a sterile injectable solution, suspension or emulsion in a nontoxic parenterally acceptable diluent or solvent, for example, as a solution in 1 , 3-butanediol . Among the acceptable vehicles and solvents that may be employed are water, Ringer's solution, U.S. . and isotonic sodium chloride solution. In addition, sterile, fixed oils are conventionally employed as a solvent or suspending medium. For this purpose any bland fixed oil can be employed including synthetic mono- or diglycerides . In addition, fatty acids such as oleic acid are used m the preparation of mjectables. The injectable formulations can be sterilized, for example, by filtration through a bacterial -retaining filter, or by incorporating sterilizing agents m the form of sterile solid compositions which can be dissolved or dispersed m sterile water or other sterile injectable medium prior to use . In order to prolong the effect of a drug, it is often desirable to slow the absorption of the drug from subcutaneous or intramuscular injection. This may be accomplished by the use of a liquid suspension of crystalline or amorphous material with poor water solubility. The rate of absorption of the drug then depends upon its rate of dissolution which, m turn, may depend upon crystal size and crystalline form. Alternatively, delayed absorption of a parenterally administered drug form is accomplished by dissolving or suspending the drug m an oil vehicle. Injectable depot forms are made by forming microencapsule matrices of the drug m biodegradable polymers such as polylactide- polyglycolide . Depending upon the ratio of drug to polymer and the nature of the particular polymer employed, the rate of drug release can be controlled. Examples of other biodegradable polymers include poly (orthoesters) and poly (anhydrides) Depot injectable formulations are also prepared by entrapping the drug m liposomes or microemulsions which are compatible with body tissues. Compositions for rectal or vaginal administration are preferably suppositories which can be prepared by mixing the compounds of this invention with suitable non- irritating excipients or carriers such as cocoa butter, polyethylene glycol or a suppository wax which are solid at ambient temperature but liquid at body temperature and therefore melt m the rectum or vaginal cavity and release the active compound. Solid dosage forms for oral administration include capsules, tablets, pills, powders, and granules. In such solid dosage forms, the active compound is mixed with at least one inert, pharmaceutically acceptable excipient or carrier such as sodium citrate or dicalcium phosphate and/or a) fillers or extenders such as starches, lactose, sucrose, glucose, mannitol, and silicic acid, b) binders such as, for example, carboxymethylcellulose, algmates, gelatin, polyvmylpyrrolidmone, sucrose, and acacia, c) humectants such as glycerol, d) disintegrating agents such as agar-agar, calcium carbonate, potato or tapioca starch, algmic acid, certain silicates, and sodium carbonate, e) solution retarding agents such as paraffin, f) absorption accelerators such as quaternary ammonium compounds, g) wetting agents such as, for example, cetyl alcohol and glycerol monostearate, h) absorbents such as kaolin and bentonite clay, and I) lubricants such as talc, calcium stearate, magnesium stearate, solid polyethylene glycols, sodium lauryl sulfate, and mixtures thereof. In the case of capsules, tablets and pills, the dosage form may also comprise buffering agents. Solid compositions of a similar type may also be employed as fillers in soft and hard- filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polyethylene glycols and the like. The solid dosage forms of tablets, dragees, capsules, pills, and granules can be prepared with coatings and shells such as enteric coatings and other coatings well known m the pharmaceutical formulating art. They may optionally contain opacify g agents and can also be of a composition that they release the active ingredient (s) only, or preferentially, m a certain part of the intestinal tract, optionally, m a delayed manner. Examples of embedding compositions which can be used include polymeric substances and waxes. Solid compositions of a similar type may also be employed as fillers m soft and hard-filled gelatin capsules using such excipients as lactose or milk sugar as well as high molecular weight polethylene glycols and the like. The active compounds can also be m micro- encapsulated form with one or more excipients as noted above. The solid dosage forms of tablets, dragees, capsules, pills, and granules can be prepared with coatings and shells such as enteric coatings, release controlling coatings and other coatings well known m the pharmaceutical formulating art. In such solid dosage forms the active compound may be admixed with at least one inert diluent such as sucrose, lactose or starch. Such dosage forms may also comprise, as is normal practice, additional substances other than inert diluents, e.g., tabletmg lubricants and other tabletmg aids such a magnesium stearate and microcrystallme cellulose. In the case of capsules, tablets and pills, the dosage forms may also comprise buffering agents. They may optionally contain opacifymg agents and can also be of a composition that they release the active ingredient (s) only, or preferentially, m a certain part of the intestinal tract, optionally, m a delayed manner. Examples of embedding compositions which can be used include polymeric substances and waxes . Dosage forms for topical or transdermal administration of a compound of this invention include ointments, pastes, creams, lotions, gels, powders, solutions, sprays, inhalants or patches. The active component is admixed under sterile conditions with a pharmaceutically acceptable carrier and any needed preservatives or buffers as may be required. Ophthalmic formulation, ear drops, eyd ns are also contemplated as being withm the scope of this invention. The ointments, pastes, creams and gels may contain, m addition to an active compound of this invention, excipients such as animal and vegetable fats, oils, waxes, paraffins, starch, tragacanth, cellulose derivatives, polyethylene glycols, silicones, bentonites, silicic acid, talc and zmc oxide, or mixtures thereof. Powders and sprays can contain, m addition to the compounds of this invention, excipients such as lactose, talc, silicic acid, aluminum hydroxide, calcium silicates and polyamide powder, or mixtures of these substances. Sprays can additionally contain customary propellants such as chlorofluorohydrocarbons . Transdermal patches have the added advantage of providing controlled delivery of a compound to the body. Such dosage forms can be made by dissolving or dispensing the compound m the proper medium. Absorption enhancers can also be used to increase the flux of the compound across the skin. The rate can be controlled by either providing a rate controlling membrane or by dispersing the compound m a polymer matrix or gel . Bacterial infections are treated or prevented in a patient such as a human or lower mammal by administering to the patient a therapeutically effective amount of a compound of the invention, m such amounts and for such time as is necessary to achieve the desired result. By a "therapeutically effective amount" of a compound of the invention is meant a sufficient amount of the compound to treat bacterial infections, at a reasonable benefit/risk ratio applicable to any medical treatment. It will be understood, however, that the total daily usage of the compounds and compositions of the present invention will be decided by the attending physician within the scope of sound medical judgement. The specific therapeutically effective dose level for any particular patient will depend upon a variety of factors including the disorder being treated and the severity of the disorder; the activity of the specific compound employed; the specific composition employed; the age, body weight, general health, sex and diet of the patient; the time of administration, route of administration, and rate of excretion of the specific compound employed; the duration of the treatment; drugs used combination or coincidental with the specific compound employed; and like factors well known m the medical arts. The total daily dose of the compounds of this invention administered to a human or other mammal m single or m divided doses can be m amounts, for example, from 0.01 to 50 mg/kg body weight or more usually from 0.1 to 25 mg/kg body weight. Single dose compositions may contain such amounts or submultiples thereof to make up the daily dose. In general, treatment regimens according to the present invention comprise administration to a patient m need of such treatment from about 10 mg to about 2000 mg of the compound (s) of this invention per day m single or multiple doses. Abbreviations used m the Schemes and Examples include the following: Ac for acetate; dba for dibenzylidme acetone; THF for tetrahydrofuran; DME for dimethoxy ethane; DMF for N, N-dimethyIformamide ; TFA for trifluoroacetic acid; DMSO for dimethylsulfoxide ; and TMS for tπmetnylsilyl . Starting materials, reagents and solvents were purchased from Aldrich Chemical Company (Milwaukee, WI) . The compounds and processes of the present invention will be better understood m connection with the following synthetic Schemes, which illustrate the methods by which the compounds of the invention may be prepared. The compounds of formulae I, II, and III may be prepared by a variety of synthetic routes. Representative procedures are shown below m Schemes 1-12. The groups R, R b , L, and T, are as previously defined unless otherwise noted. It will be readily apparent to one of ordinary skill m the art that other compounds withm formulae I, II, and III can be synthesized by substitution of the appropriate reactants and agents m the syntheses shown below. It will also be apparent to one skilled m the art that the selective protection and deprotection steps, as well as the order of the steps themselves, can be carried out m varying order, depending on the nature of groups R, R p , L, and T, order to successfully complete the syntheses of compounds of formulae I, II, and III. The conversion of erythromycin A to 1 is described m United States Pat. Nos . 4,990,602; 4,331,803, 4,680,368, and 4,670,549 and European Patent Application EP 260,938, the disclosures of each of which are herein incorporated by reference. Briefly, the C-9-carbonyl of erythromycin A can be protected as an oxime. Preferred protecting groups at the C-9-carbonyl are =N-0-R x or =N-0-C(R y ) (R z ) (-0-R x ) , wherein R x is (a) C ι -C ι2 -al yl , (b) C ι -C 12 -alkyl substituted with aryl, (c) C ι -C 12 -alkyl substituted with substituted aryl, (d) Cι-C ι2 -alkyl substituted with heteroaryl, (e) Cι-Cι 2 -alkyl substituted with substituted heteroaryl, (f) C 3 -Cι 2 -cycloalkyl , or (g) -Sι-(R d ) (R e ) (R f ) , wherein R d , R e and R f are Cι-Cι 2 -alkyl or -Si (aryl) 3 , and wherein R y and R z are independently (a) hydrogen, (b) Cι-C 12 -alkyl , (c) Cι-Cι 2 -alkyl substituted with aryl, or (d) C ι -Cι 2 -alkyl substituted with substituted aryl, or R y and R z taken together with the carbon to which they are attached form a C 3 -Cι 2 -cycloalkyl ring. A preferred carbonyl protecting group is 0-(l- lsopropoxycyclohexyl) oxime. The 2'- and 4"-hydroxy groups of the C-9 protected erythromycin A can be treated with a hydroxy protecting group precursor in an aprotic solvent. Hydroxy protecting group precursors include, acetic anhydride, benzoic anhydride, benzyl chloroformate, hexamethyldisilazane, or a trialkylsilyl halide. Examples of aprotic solvents include dichloromethane, chloroform, THF, N-methyl pyrrolldmone, DMSO, diethylsulfoxide, DMF, N, N-dimethylacetamide, hexamethylphosphoπc triamide, mixtures thereof, and mixtures of one of these solvents with ether, tetrahydrofuran, 1 , 2 -dimethoxyethane , acetonitrile, ethyl acetate, or acetone. Aprotic solvents do not adversely affect the reaction and are preferably dichloromethane, chloroform, DMF, tetrahydrofuran (THF) , N-methyl pyrrolidinone, or mixtures thereof. Protection of the 2'- and 4 "-hydroxy groups of the C-9 protected erythromycin A may be accomplished sequentially or simultaneously. Preferred protecting groups include acetyl, benzoyl, and trimethylsilyl . An especially preferred protecting group is trimethylsilyl. A thorough discussion of protecting groups and the solvents m which they are most effective is provided in Greene and Wuts m Protective Groups in Organic Synthesis, 2nd ed., John Wiley & Son, Inc., 1991. Scheme 1 As shown m Scheme 1, conversion of alcohol 1 to ether 2 can be accomplished with an alkylatmg agent m the presence of base. Alkylating agents include alkyl chlorides, bromides, iodides or alkyl sulfonates. Specific examples of other alkylating agents are allyl bromide, propargyl bromide, benzyl bromide, 2-fluoroethyl bromide, 4-nitrobenzyl bromide, 4-chlorobenzyl bromide, 4-methoxybenzyl bromide, α-bromo-p-tolunitπle, cmnamyl bromide, methyl 4-bromocrotonate, crotyl bromide, 1- bromo-2-pentene, 3-bromo-l-propenyl phenyl sulfone, 3- bromo-1 -trimethylsilyl -1-propyne, 3 -bromo-2-octyne, 1- bromo-2 -butyne , 2-pιcolyl chloride, 3-pιcolyl chloride, 4-pιcolyl chloride, 4-bromomethyl qumolme, bromoacetonitrile, epichlorohydrm, bromofluoromethane , bromonitromethane, methyl bromoacetate, methoxymethyl chloride, bromoacetamide, 2 -bromoacetophenone, l-bromo-2- butanone, bromochloromethane, bromomethyl phenyl sulfone, and 1 , 3 -dιbromo-1-propene . Examples of alkyl sulfonates are allyl tosylate, 3-phenylpropyl trifluoromethane sulfonate, and n-butylmethanesulfonate . Examples of the solvents used are aprotic solvents such as (DMSO) , diethylsulfoxide, N,N-dιmethylformamide, N,N- dimethylacetamide , N-methyl -2 -pyrrolidone , hexamethylphosphoric tπamide, mixtures thereof or mixtures of one of these solvents with ether, tetrahydrofuran, 1 , 2 -dimethoxyethane, acetonitrile, ethyl acetate, or acetone. Examples of the base which can be used are potassium hydroxide, cesium hydroxide, tetraalkylammonium hydroxide, sodium hydride, potassium hydride, and alkali metal alkoxides such as potassium isopropoxide, potassium tert-butoxide, and potassium I SO- butoxide. An especially preferred method of preparing 2 was treatment of alcohol 1 with propargyl bromide m a DMSO/THF mixture with potassium hydroxide as the base. The conversion of 2 to 3 can be accomplished as described m Greene. The preferred conditions for the deprotection of the 2'- and 4"-hydroxyl groups (acetic acid m acetonitrile and water) can result m concomitant removal of the 1-ιsopropoxycyclohexyl group provide an unalkylated oxime (=N-OH) at C-9. If not, then the conversion can be accomplished m a separate step. The deoximation of 3_ to provide Intermediate 4 can be accomplished as described m Greene. Examples of deoximatmg agents are nitrous acid (formed m si tu by the reaction of sodium nitrite with acids such as HC1 , H 2 S0 4 , and TFA) and inorganic sulfur oxide compounds such as sodium hydrogen sulfite, sodium pyrosulfate, sodium thiosulfate, sodium sulfate, sodium sulfite, sodium hydrosulfite , sodium metabisulfite, sodium dithionate, potassium thiosulfate, and potassium metabisulfite m an protic solvent. Examples of protic solvents are water, methanol , ethanol, propanol , isopropanol, tπmethylsilanol , or mixtures thereof. The deoximation reaction can also be accomplished with an organic acid such as formic acid, acetic acid and TFA. The amount of acid used is from about 1 to about 10 equivalents per equivalent of 3. In a preferred embodiment, the deoximation was carried out using sodium nitrite and an inorganic acid such as HCl m ethanol and water to provide the desired 6-O-substιtuted erythromycin Intermediate 4 , wherein R is propargyl . Scheme 2 As shown in Scheme 2, conversion of 4 to Intermediate 5 . can be accomplished by the 2'- and 4"- hydroxy group protection procedures described previously. Conversion of 5 to 6 can be accomplished with an excess of an alkali metal hydride or bis (trimethylsilyl) amide in the presence of carbonyldiimidazole m an aprotic solvent for about 8 to about 24 hours at temperatures of about - 30 °C to about room temperature to provide 6.. The alkali metal may be sodium potassium or lithium and the aprotic solvent can be one defined previously. The reaction may require cooling or heating from about -20 °C to about 70 °C, depending on the conditions used, and preferably from about 0 °C to about room temperature. The reaction requires about 0.5 hours to about 10 days, and preferably about 10 hours to 2 days to complete. Portions of this reaction sequence follow the procedure described by Baker et al . , J. Org. Chem . , 1988, 53, 2340 the disclosure of which is herein incorporated by reference. Conversion of 6 . to cyclic carbamate 7, a precursor of compounds of formula I, was accomplished by treatment of 6. with liquid ammonia at room temperature for 20 hours. Scheme 3 As shown in Scheme 3 , 7. can be converted to 8 . by hydrolysis of the former with mild aqueous acid or by enzymatic hydrolysis to remove the cladmose moiety from the 3 -hydroxy group. Representative acids include dilute hydrochloric acid, sulfuric acid, perchloric acid, chloroacetic acid, dichloroacetic acid, or TFA. Suitable solvents for the reaction include methanol , ethanol, isopropanol, butanol, acetone, and mixtures thereof. Reaction times are typically about 0.5 to about 24 hours. The preferred reaction temperature is about -10 °C to about 60 °C, depending on the method chosen. Alternately, 5 can be treated with acid to remove the protected cladinose group from the 3 -hydroxy group as described for the conversion of 7 to 8 and treated with base and carbonyldiimidazole then ammonia as described for the conversion of 5 to 6 and the conversion of 6 . to 7, respectively, to provide 8.. The conversion of 8 to 9 can be accomplished by oxidation of the 3 -hydroxy group to a 3-oxo group using a Corey-Kim reaction with N- chlorosuccmimide-dimethyl sulfide or with a modified Swern oxidation procedure using a carbodiimide-DMSO complex. In a preferred method, 8. is added to a preformed N-chlorosuccmimide-dimethyl sulfide complex m a chlorinated solvent such as dichloromethane or chloroform at about -10 to about 25 °C. After stirring for about 0.5 to about 4 hours, a tertiary amme such as triethylamme or diisopropylethylamme is added to produce 9 , a precursor to compounds of formula I. Scheme 4 As shown in Scheme 4, 4 (from Scheme 2) can alternatively be (a) treated with acid to remove the cladinose group from the 3 -hydroxy group (as described for the conversion of 7 to 8.) to provide 11a, (b) protected (as described for the conversion of 4 to 5 . ) , to provide lib , (c) oxidized (as described for the conversion of 8 to 9.) to provide 12, and (d) treated with sodium hydride and carbonyldiimidazole (as described for the conversion of 5 to 6.) to provide 13. Scheme 5 As shown in Scheme 5, 15, a precursor to compounds of formula II was prepared by treatment of 13. with ethylenediamine in a suitable solvent such as aqueous acetonitrile, DMF, or aqueous DMF to provide JL4 which further cyclized by intramolecular condensation with the nearby C-9 carbonyl to form 15. Preferred conditions for the formation of 15 from 14 are dilute acetic acid or hydrochloric acid in a suitable organic solvent such as ethanol or iso-propanol . Scheme 6 As shown in Scheme 6, 16., a precursor to compounds of formula III was prepared by treatment of Intermediate 13 with hydrazine in a suitable solvent such as acetonitrile, DMSO, DMF, or mixtures thereof at temperatutes from about room temperature to about 100 °C, In a preferred embodiment, 13. was treated with hydrazine in DMF at a temperature of about 58 °C. Scheme 7 general route 1 : 9 (i)-(πi) 15 16 general route 2: 9 18 (i)-(πi) 15 16 Intermediates 9 , 15, and 16. can be converted to compounds of formulae I, II, and III, respectively, by a number of general routes . Two preferred general routes are shown in Scheme 7. In general route 1, the 6-0 propargyl group of 9., 15, or 16 is reacted with R precursor groups such as X 1 -Ar 1 -Ar 2 , wherein Ar 1 and Ar 2 are the same or different and are unsubstituted or substituted aryl groups, or unsubstituted or substituted heteroaryl groups, and X 1 is one of any number of covalent bond precursors such as a halide (preferably bromide and iodide) or a sulfonate, to form compounds of formulae I, II, and III. In general route 2, the 6-0 propargyl group is reacted with a bifunctionalized aryl or heteroaryl group R precursor, X 1 -Ar 1 -X 2 , to provide prefunctionalized coupling precursor 18, wherein X 2 is halide of sulfonate, which is subsequently coupled to R precursor group X 3 -Ar 2 , wherein X 3 is a covalent bond precursor such as halide (preferably bromide and iodide), sulfonate, tπalkylstannane, boromc acid, or borate ester, to provide compounds of formulae I, II, and III. The coupling reactions are performed m the presence of Pdll or Pd(0) catalysts with promoters such as phosphmes (preferably triphenylphosphme) , arsmes (preferably triphenylarsme) , amines (preferably pyridme and triethylamme) , and inorganic bases (preferably potassium carbonate or cesium fluoride) m polar, aprotic solvents such as DMF, DMSO, DME, acetonitrile, THF, or mixtures thereof, at temperatures from about room temperature to about 150 °C, depending on the coupling method chosen and the nature of X 1 , X 2 , and X 3 . A thorough survey of coupling procedures, reagents, and solvents for transition metal-catalyzed couplings is provided m Larock, Comprehensive Organic Transformations. A Guide to Functional Group Preparations. VCH Publishers, New York (1989) . Scheme 8 As shown m Scheme 8, the 6-O-propargyl groups of 9 can be derivatized with borane-THF aprotic solvents at temperatures from about -20 °C to about room temperature to provide vinyl boromc acid derivatives. This chemistry is exemplified by the conversion of 9 to 19. The vinyl boromc acid can then be reacted under Suzuki conditions with the X 1 -Ar 1 -Ar 2 or X 1 -Ar 1 -X 2 reagents, catalysts, and promoters described in the description for Scheme 7 to provide additional compounds of the invention. A thorough discussion of Suzuki conditions is provided m Chemical Reviews. 1995, Vol. 95, No .7 , 2457- 2483. Scheme 9 As shown in Scheme 9, the one-step conversion of 19. to compounds of formula I can be accomplished using the chemistry described for general route 1 (Scheme 7) . Scheme 10 As shown in Scheme 10, the two-step conversion of 19 to compounds of formula I can be accomplished using the chemistry described for general route 2 (Scheme 7) via intermediate 20. Scheme 11 As shown in Scheme 11, general route 1 can also be used with the 6-O-allyl derivative 21 to prepare compounds of formula I . The synthesis of 21 is described in United States Pat. No. 5,866,549, Example 1, steps la- g and Example 102, steps 120a-c, the disclosure of which is herein incorporated by reference. Scheme 12 As shown in Scheme 12, general route 2 can also be used with the 6-O-allyl derivative 21 to prepare compounds of formula I . EXAMPLES The compounds and processes of the present invention will be better understood m connection with the following examples, which are intended as an illustration of and not a limitation upon the scope of the invention as defined m the appended claims. Example 1 Compound of Formula I: R b is H, L is -C(O)-. T is -NH- . R is - (CH ) -C≡C- (5- (2-pyrιdyl) -2-th enyl) step la: compound 2 from Scheme 1 A stirred solution of compound 1 from Scheme 1 (100 g, 0.0969 mol) m freshly distilled THF (500 mL) and anhydrous DMSO (200 mL) at 0 °C, was treated with propargyl bromide (80 wt . % m toluene, 27 mL, 0.24 mol) followed by dropwise addition over 25 minutes of a solution/slurry of powdered KOH (13.6 g , 0.24 mol) m DMSO (300 mL) , stirred vigorously at 0 °C for 1 hour, treated sequentially with powdered KOH (10.9 g, 0.19 mol) and propargyl bromide (80 wt . % in toluene, 0.19 mol), and stirred at 0 °C for 1.5 hours. The addition sequence of KOH (10.9 g) and propargyl bromide solution (21 mL) followed by 1.5 hours of stirring at 0 °C was repeated three times until the reaction was judged to be 60-65% complete by TLC (98:1:1 dichloromethane :methanol : ammonium hydroxide) . The cold reaction mixture was diluted with ethyl acetate (1.5 L ) and water (1 L) , stirred at 0 °C for 5 minutes, and agitated m a separatory funnel. The resulting organic layer was separated, washed sequentially with water (IL) and brine (2 x 500 L) , dried (MgSO-j) , filtered, and concentrated to provide 108 g of a dark brown foam which was used step lb without further purification. MS (FAB) m/z 1071 (M+H) + . step lb : compound 3 from Scheme 1 A suspension of the product from step la (108 g) m acetonitrile (300 mL) was treated sequentially with water (150 mL) and glacial acetic acid (200 mL) , stirred at room temperature for 20 hours, and concentrated at 40 °C to provide a brown foam. The foam was dissolved m ethyl acetate (750 mL) , washed sequentially with 5% aqueous sodium carbonate (2 x 250 mL) and brine (2 x 250 mL) , dried (MgSO-i), filtered, and concentrated to provide 74 g of the crude oxime as a brown foam which was used m step lc without further purification. step lc: compound 4 from Scheme 1 A solution of the product from step lb (74 g) m ethanol (50 mL) was treated sequentially with water (550 mL) and sodium nitrite (33 g, 0.48 mol), stirred at room temperature for 15 minute, treated with 4M HC1 (125 mL, 0.48 moles) over 15 minutes, heated to 70 °C for two hours, cooled to room temperature, diluted with ethyl acetate (1.3L), washed sequentially with 5% aqueous sodium carbonate (2 x 350 mL) and brine (2 x 300 mL) , dried (MgSO-j.) , filtered, and concentrated. Purification of the residue by flash chromatography on silica gel with 98:1:1 dichloromethane -.methanol : ammonium hydroxide provided 45 g of a yellow foam. Crystallization of the foam from hot acetonitrile provided 27 g of desired product as off-white crystals. MS (APCI) m/z 772 (M+H) + . step Id: compound 5 from Scheme 2 A solution of the product from step lc (18.9g, 24.5 mmol) m anhydrous methylene chloride (100 mL) was treated sequentially with 4- (dimethylammo) pyridme (105 mg, 0.86 mmol) and triethylamme (7.16 ml, 51 mmol), cooled to 15-20 °C m a cold water bath, treated with acetic anhydride (5.5 mL, 58 mmol) over 5 minutes, stirred at room temperature for 4.5 hours, diluted with ethyl acetate (300 mL) , washed sequentially with 5% aqueous sodium carbonate (2 x 100 mL) , water (2 x 100 mL) and brine (2 x 100 L) , dried (MgSO-j) , filtered, and concentrated to provide 21 g of the desired product as a white foam which was used without further purification m step le. step le : compound 6 from Scheme 2 A solution of the product from step Id (92.38 g, 0.108 mol) m THF (350 mL) and DMF (175 mL) at room temperature was treated with 1 , 1 ' -carbonyldiimidazole (61.26 g, 0.378 mol), cooled to 0 °C, treated with sodium hydride (60% dispersion m mineral oil, 5.4 g, 0.135 mol) over 1 hour, stirred an additional 30 minutes at 0 °C and at room temperature for 3 hours, recooled to 0 °C, diluted with ethyl acetate (800 mL) , washed sequentially with 5% aqueous sodium bicarbonate (200 mL) , water (2 x 500 mL) and brine (2 x 300 mL) , dried (Na2SO-ι) , filtered, and concentrated to provide 104 g of the desired product as a dark yellow foam which was used without further purification m step If. MS (ESI) /z 932 (M+H) + . step If: compound 7 from Scheme 2 A solution of the product from step le (52 g, 55.8 mmol) m acetonitrile (500 mL) at -78 °C was treated with liquid ammonia (500-600 L) m a sealed reaction vessel, stirred at room temperature for 24 hours, concentrated first by evaporation of the ammonia at room temperature and atmospheric pressure, and concentrated finally to remove the acetonitrile. The crude product (52 g) was purified by flash chromatography on silica gel with a gradient of from 3:7 acetone/hexanes to 1:1 acetone/hexanes to provide 32 g of the title compound as a yellow foam. step lg: compound 8 from Scheme 3 A suspension of the product from step If (63.92 g, 72.55 mmol) m 1:1 ethanol/water (600 mL) at 0 °C was treated with 4N HC1 (393 mL, 1860 mmol) over 20 minutes, stirred at room temperature for 24 hours, recooled to 0 °C, diluted with water (200 mL) , adjusted to pH 9-10 with 4N sodium hydroxide solution, diluted with ethyl acetate, washed with brine, dried (Na2SO-ι) , filtered, and concentrated to provide 62.1 g of yellow foam. Crystallization of the foam from 1.5:1 ethyl acetate/hexanes (115 mL) provided 34 g of the desired product as a white solid. MS (ESI) m/z 681 (M+H) + . step lh: compound 9 from Scheme 3 A solution of N-chlorosuccinimide (10.86g, 81.66 mmol) in anhydrous dichloromethane (450 mL) at -10 °C was treated with methyl sulfide (6.98 ml, 95.27 mmol) over 10 minutes, stirred for an additional 10 minutes, treated with a solution of the product from step lg (37.02 g, 54.44 mmol) in anhydrous dichloromethane (450 mL) over 35 minutes, stirred an additional 25 minutes at -10 °C, treated with triethylamine (7.57 L, 54.44 mmol) over 10 minutes, stirred at -10 °C for an additional 50 minutes, washed sequentially with saturated, sodium bicarbonate solution, and brine, dried (Na2S0-ι), filtered, and concentrated. Purification of the residue by flash chromatography on silica gel with from 3:7 to 1:1 acetone/hexanes provided 31.9 g of the desired product as a pale yellow foam. MS (ESI) m/z 679 (M+H) + . step li: option 1: Compound of Formula I: R b is CHC(0) L is -C(O)-. T is -NH- . R is - (CH 2 ) -C≡C- (5-iodo-2 -thienyl ) A slurry of the product from step lh (5.02g, 7.40 mmol), 2 , 5-diiodothiophene (5.47g, 16.29 mmol), dichlorobis (triphenylphosphine) palladium(II) (0.103g, 0.148 mmol), and copper I iodide (0.014g, 0.074 mmol) in triethylamine (18 mL) and acetonitrile (6 mL) was heated at 60 °C for 3 hours, stirred at room temperature for 48 hours, and concentrated. Purification of the residue by flash chromatography on silica gel with from 40:60 to 1:1 acetone-hexanes provided 4.54g (69.4%) of the desired product as a yellow foam. MS (APC I ) m/z 887 ( M+H ) " . step li : option 2: Compound of Formula I: R b is CH 2 C (O) - . I, is -C(O)-. T is -NH- . R is - (CH ) -C≡C- (5-bromo-2 - thienyl ) The product from Example lh (10.8 g) was processed as described in step li, option 1, (substituting 2,5- dibromothiophene for 2 , 5-diiodothiophene) to provide 8.81 g of the desired product . MS (APCI) m/z 841 (M+H) " " . step lj : Compound of Formula I: R b is CH 2 C (O) L is -C.O)-. T is -NH-. R is - (CH ) -C≡C- (5- (2 -pyridyl ) -2 - thienyl) A solution of the product from step li, option 2 (300 mg, 0.34 mmol), 2-tri-n-butylstannylpyridine (312 mg, 0.85 mmol), tetrakis (triphenylphosphine) palladium (0) (38 mg, 0.034 mmol) and copperI bromide (2.4 mg, 0.017 mmol) in degassed 1,4-dioxane (2.5 mL) was heated at 90 °C for 21 hours and concentrated. Purification of the residue by flash chromatography on silica gel with from 35:65 to 1:1 acetone-hexanes provided 170 mg of a yellow foam. step Ik: Compound of Formula I: R b is H, L is -C(O)-. T is -NH-. R is - (CH 2 ) -C≡C- (5- (2-pyridyl) -2-thienyl) A solution of the product from step lj was dissolved in methanol (10 mL) , stirred for 6 hours at room temperature, and concentrated. Purification of the residue by flash chromatography on silica gel with 98:1:1 dichloromethane :methanol : ammonium hydroxide provided 136 mg of the desired product as a yellow foam. MS (APCI) m/z 796 (M+H) + ; 13 C NMR (100 MHz, CDCl 3 ) 216.6, 205.1, 169.3, 157.7, 152.1,149.5, 145.8, 136.5, 133.4, 124.5, 124.3, 122.0, 118.9, 103.1, 90.6, 83.5, 79.4, 79.4, 77.3, 77.3, 70.2, 69.5, 65.8, 58.2, 51.7, 51.0, 46.6, 44.7, 40.2, 38.7, 37.3, 28.3, 22.5, 21.1, 19.7, 18.0, 14.7, 14.5, 13.6, 13.6, 10.5; High Resolut ion MS ( FAB ) calcd (M+H) + for : 796 . 3843 . Found : 796 . 3826 . Example 2 Compound of Formula I: R b is H. L is -C(O)-, T is -NH- R is - (CH ) -C≡C- (5- (3-pyridyI) -2 -thienyl) The product from step li, option 2 (250 mg) , was processed as described in steps lj and Ik (substituting 3-tri-n-butylstannylpyridine for 2-tri-n- butylstannylpyridine) to provide 61 mg of the desired product . High Resolution MS (FAB) calcd (M+H) + for : 796.3843. Found: 796.3826. Example 3 Compound of Formula I: RR bb iiss HH., IL is -C(O)-, T is -NH- R is - (CH ) -C≡C- (5- (4-pyridyl) -2-thieny] ' The product from step li, option 2 (350 mg) , was processed as described in steps lj and Ik (substituting 4-tri-n-butylstannylpyridine for 2-tri-n- butylstannylpyridine) to provide 105 mg of the desired product .. High Resolution MS (ESI) calcd (M+H) + for C 42 H 58 N 3 θ 10 S : 796.3843. Found: 796.3833. Example 4 Compound of Formula I: Rl bb iiss HH,. LL is -C(0)-. T is -NH- R is - (CH ) -C≡C- (5- (5-pyrimidinyl ) -2 -thienyl step 4a: Compound of Formula I: R b is -C(0)CH 2 L is -C.O)-. T is -NH-. R is - (CH 2 ) -C≡C- (5- (5- pyrimidinyl) -2 -thienyl) A solution of the product from step li, option 1 (250 mg) , hexamethylditin (100 mg) , dichlorobis (triphenylphosphine) palladium (II) (16 mg) and 5-bromopyrimidine (49 mg) , in toluene (4 mL) in a pressure vial was heated to 100 °C for 18 hours, cooled, and concentrated. The residue was purified on silica gel with 98:1:1 dichloromethane :methanol : ammonium hydroxide to provide 80 mg of the desired product. step 4b: Compound of Formula I: R b is H. L is -C(0)-. T is -NH- . R is - (CH 2 ) -C≡C- (5- (5-pyrimidinyl ) -2 -thienyl ' A solution of the product from step 4a (126 mg) was stirred in methanol (5 mL) for 20 hours and concentrated to provide 118 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C4iH 57 N 4 θ 10 S : 797.3790. Found 797.3793. Example 5 Compound of Formula I: R ? bb iiss HH.. LL is -C(O)-, T is -NH- R is - (CH ) -C≡C- (5- (2 -pyrimidinyl ) -2-thieny- The product from step li, option 2 (250 mg) , was processed as described in steps lj and Ik (substituting 2 -tri-n-butylstannylpyrimidine for 2-tri-n- butylstannylpyridine) to provide 41 mg of the desired product . High Resolution MS (FAB) calcd (M+H) + for C4iH 57 N 4 O 10 S : 797.3790. Found 797.3795. Example 6 Compoumndd ooff FFoorrmmuullaa II:: RR bb iiss HH.. LL is -C(O)-. T is -NH- R is - (CH -C≡C- (5- (2-pyrazinyl) -2-thienyl) The product from step li, option 2 (252 mg) , was processed as described in steps lj and Ik (substituting 2-tri-n-butylstannylpyrazine for 2-tri-n- butylstannylpyridine) to provide 93 mg of the desired product . High Resolut ion MS ( FAB) calcd (M+H) + f or C 4 ιH57N-0 10 S : 797 . 3790 . Found 797 . 3784 . Example 7 Compound of Formula I: R b is H, L is -C(0)-, T is -NH- R is - (CH 2 ) -C≡C- (5- (5-pyrimidinyl) -2-thienyl) step 7a: Compound of Formula I: R b is CH 2 C(0)-, L is -C(O)-. T is -NH- . R is - (CH ) -C≡C- ( 5- (5- pyrimidinyl) -2-thienyl) A solution of Pd 2 (dba) 3 (96 mg, 0.105 mmol) and triphenylarsine (128 mg, 0.42 mmol) in degassed acetonitrile (6 mL) was stirred for 30 minutes, treated sequentially with the product from step lh (1.04 g, 1.4 mol), 2-bromo-5- (4-pyrimidinyl) thiophene (0.607 g, 2.5 mmol) and copperl iodide (2.7 mg, 0.014 mmol), stirred at 80 °C for 2 hours, cooled, treated with ethyl acetate (50 mL) and water (10 mL) , filtered through powdered seashells (Celite ) . The water was removed, and the organic layer was washed with brine, dried (Na 2 SO-ι), filtered, and concentrated. The residue was chromatographed on silica gel with 98:1:1 dichloromethane : methanol : ammonium hydroxide to provide 724 mg of the desired product. step 7b: Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is - (CH^-C≡C- (5- (5-pyrimidinyl) -2 -thienyl ) A solution of the product from step 7a (724 mg) was stirred in methanol (15 mL) for 48 hours and concentrated. Purification of the residue on silica gel with 98:1:1 dichloromethane : methanol : ammonium hydroxide provided 413 mg of the desired product. High Resolut ion MS ( FAB ) calcd (M+H) + for C 4 iH 57 N 4 θ 10 S : 797 . 3790 . Found 797 . 3787 . Example 8 Compound of Formula I: R b is H. L is -C(O)-, T is -NH- R is - (CH ) -C≡C- (5- ( 5 -cyano-3 -pyridyl) -2 -thienyl) The product from step li, option 2 (250 mg) , was processed as described m steps 4a and 4b (substituting 5-bromonιcotmonιtπle for 5-bromopyπmιdme) to provide 115 mg the desired product . High Resolution MS (FAB) calcd (M+H) + for C 43 H 5 -N 4 O 10 S : 821.3795. Found 821.3766. Example 9 Compound of Formula I: R b is H. L is -C(O)-, T is -NH- . R s - (CH ) -C≡C- (5- ( 5 -carboxamιdo-3 -pyridyl) -2-thienyl) The product from step li, option 2 (250 mg) , was processed as described m steps 4a and 4b (substituting 5-bromonιcotmamιde for 5-bromopyπmιdme) to provide 115 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C43H 59 N 4 O H S : 839.3896. Found 839.3895. Example 10 Compound of Formula I: RR bb iiss HH.. LL is -C(O)-, T is -NH- . R is - (CH-. ) -C≡C- (5- (5-ethoxycarbonyl-3-pyπdyl) -2-thienyl ' The product from step li, option 2 (250 mg) , was processed as described m steps 4a and 4b (substituting ethyl 5-bromonιcotmate for 5 -bromopyrlmidine ) to provide 44 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 45 H 62 N 3 Oι 2 S 868.4049. Found 868.4037. Example 11 Compound of Formula I: R b is H, L is -C(O)-, T is -NH- . R is - (CH ) -C≡C- (5- ( 5-N. N-dιmethylcarboxamιdo-3 -pyridyl ) - 2 -thienyl) The product from step li, option 1 (250 mg) , was processed as described m steps 4a and 4b (substituting 5-bromo-N, N-dimethylnicotmamide for 5 -bromopyrlmidine) to provide 130 mg the desired product. MS (ESI) m/z 867 (M+H) + . Example 12 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is - (CH 2 ) -C≡C- (5- (5-N' ,N' -dimethylhydrazidocarbonyl -3- pyπdyl) -2 -thienyl) The product from step li, option 1 (250 mg) , was processed as described m steps 4a and 4b (substituting 5-bromo-N' ,N' -dimethylnicotmohydrazide for 5- bromopyrimidme) to provide 56 mg the desired product. MS (ESI) m/z 882 (M+H) + . Example 13 Compound of Formula I: R b is L is -C(0)-, T is -NH- , H, R is - _CH ) -C≡C- (5- (phenyl) -2-thιenyl.. step 13a: A solution of the product from step li, option 1 (195 mg, 0.22 mmol), phenylboronic acid (40.2 mg, 0.33 mmol) , potassium carbonate (76 mg, 0.55 mmol) , and Pd(0Ac) 2 (0.25 mg, 0.001 mmol) m acetone (2 mL) and water (1 mL) was heated to 60 °C for 18 hours, cooled to room temperature, treated with ethyl acetate, washed sequentially with 5% sodium bicarbonate and brine, dried (Na2S04), filtered and concentrated. The residue was chromatographed on silica gel with 98:1:1 dichloromethane : methanol : ammonium hydroxide to provide 95 mg (32%) of the desired product. High Resolution MS (FAB) calcd (M+H) + for C4 3 H 59 N 2 0 12 S : 795.3885. Found 795.3870. Example 14 Comp .oouunndd ooff FFoorrmmuullaa II:: RR bb iiss HH,, IL is -C(O)-. T is -NH- R is - (CH-.) -C≡C- (5- (3-methoxyphenyl) -2 -thienyl The product from step li, option 1 (151 mg) , was processed as described m Example 13 (substituting 3- methoxyphenylboromc acid for phenylboronic acid) to provide 95 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 4 4H 6 ιN 2 0ιιS : 825.3996. Found 825.4023. Example 15 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- , R is - (CH ) -C≡C- (5- (3 -fluorophenyl) -2-thienyl) The product from step li, option 1 (195 mg) , was processed as described in Example 13 (substituting 3- fluorophenylboronic acid for phenylboronic acid) to provide 83 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 43 H 58 N 2 O 10 SF : 813.3791. Found 813.3803. Example 16 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- , R is - (CH 2 ) -C≡C- (5- (3-chlorophenyl) -2-thienyl) The product from step li, option 1 (252 mg) , was processed as described in Example 13 (substituting 3- chlorophenylboronic acid for phenylboronic acid) to provide 43 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 4 3H 5 eN 2 OιoSCl : 829.3495. Found 829.3496. Example 17 Compound of Formula T: R b is H. L is -C(O)-. T is -NH- . R is - (CH 2 ) -C≡C- (5- (3.5-dichlorophenyl) -2-thienyl) The product from step li, option 1 (266 mg) , was processed as described in Example 13 (substituting 3,5- dichlorophenylboronic acid for phenylboronic acid) to provide 82 mg the desired product. High Resolution MS ( FAB ) calcd (M+H) + for C 43 H 57 N 2 O 10 SCl 2 : 863 . 3105 . Found 863 . 3108 . Example 18 Compound of Formula I: R b is H, L is -C.O)-. T is -NH- . R is - (CH ) -C≡C- (5- (3-methylphenyl) -2-thienyl ) The product from step li, option 1 (159 mg) , was processed as described in Example 13 (substituting 3- methylphenylboronic acid for phenylboronic acid) to provide 93 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 44 H ει N 2 O 10 S : 809.4041. Found 809.4037. Example 19 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is - (CH 2 ) -C≡C- (5- (3 -trifluoromethylphenyl) -2-thienyl) The product from step li, option 1 (195 mg) , was processed as described in Example 13 (substituting 3- trifluoromethylphenylboronic acid for phenylboronic acid) to provide 120 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 44 H 58 N 2 O 10 SF 3 : 863.3759. Found 863.3750. Example 20 Compound of Formula I: R b is H, L is -C(O)-. T is -NH- , R is - (CH 2 ) -C≡C- (5- (3-acetamidophenyl) -2-thienyl) The product from step li, option 1 (151 mg) , was processed as described in Example 13 (substituting 3- acetamidophenylboronic acid for phenylboronic acid) to provide 80 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 45 H 62 N 3 0ι ι S : 852.4100. Found 852.4096. Example 21 Compound of Formula I: R b is H, L is -C(O)-. T is -NH- . R is - (CH ) -C≡C- (5- ( -nitrophenyl) -2-thienyl ) The product from step li, option 1 (151 mg) , was processed as described in Example 13 (substituting 3- nitrophenylboronic acid for phenylboronic acid) to provide 102 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 43 H 58 N 3 Oι 2 S : 840.3736. Found 840.3722. Example 22 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is - (CH) -C≡C- (5- (4-fluorophenyl) -2-thienyl) The product from step li, option 1 (293.6 mg) , was processed as described in Example 13 (substituting 4- fluorophenylboronic acid for phenylboronic acid) to provide 145 mg the desired product. High Resolution MS (FAB) calcd (M+H) + for C 43 H5 8 N2θ 10 SF : 813.3796. Found 813.3803. Example 23 Compound of Formula I: R b is H, L is -C(0)-, T is -NH- . R is - (CH 2 ) -CsC- (5- (2-furanyl) -2-thienyl) The product from step li, option 1 (266 mg, 0.30 mmol) , was processed as described in steps lj and Ik (substituting 2-tri-n-butylstannylfuran for 2-tri-n- butylstannylpyridine) to provide 74 mg of the desired product . High Resolution MS (FAB) calcd (M+H) + for C 41 H 57 N 2 0 11 S : 785.3683. Found 785.3679. Example 24 Compound of Formula I: RR bb iiss HH,. LL is -C(O)-, T is -NH- . R is - (CH 2 ) -C-≡C- (4- (5-formyl -2-furanyl) phenyl) step 24a: Compound of Formula I: R b is CHC(Q)-. L is -C(O)-. T is -NH- . R is - (CH ) -C-sC- (4- (5-formyl-2 - furanyl ) phenyl ) A solution of the product from step lh (300 mg) , dichlorobis (triphenylphosphine) palladium (II) (6.2 mg) , copper(I) iodide (0.84 mg) , and 5- (4-bromophenyl) -2- furaldehyde (200 mg) in acetonitrile (0.5 mL) and triethylamine (2 mL) was heated to 60 C for 18 hours, cooled to room temperature, treated with ethyl acetate, washed sequentially with 5% sodium bicarbonate and brine, dried (Na2S0-ι) , filtered and concentrated. The residue was chromatographed on silica gel with 98.5:1:0.5 chloroform: methanol : ammonium hydroxide to provide 105 mg of the desired product. step 24b: Compound of Formula I: R b is H, L is -C (O) - . T is -NH-, R is - (CH ) -C≡C- (4- (5- formyl -2-furanyl ) henyl . A solution of the product from step 24a (165 mg) was processed as described in step 7b, filtered through a syringe membrane filter, and concentrated to provide 55 mg of the desired product. High Resolution MS (FAB) calcd (M+H) + for C 44 H 59 N 2 0 12 : 807.4075. Found 807.4075. Example 25 Compound of Formula I: RR bb iiss HH.. LL is -C(O)-, T is -NH- . R is - (CH ) -C≡C- (2.2' -bisthienyl) The product from step li, option 1 (110 mg) , was processed as described in steps lj and Ik (substituting 2-n-tributylstannylthiophene for 2-tri-n- butylstannylpyridine) to provide 43 mg of the desired produc . High Resolution MS (FAB) calcd (M+H) + for C 4 ιH 57 N 2 O 10 S 2 : 801.3455. Found 801.3462. Example 26 Compound of Formula I: R is H. L is -C(O)-. T is -NH- . R is - (CHol -C.≡C- (2- (5-chloro-2 -thienyl) thienyl) The product from step li, option 2 (250 mg) , was processed as described in steps 4a and 4b (substituting 2-bromo-5-chlorothiophene for 5-bromopyrimidine) to provide 80 mg of the desired product. 87 High Resolution MS (FAB) calcd (M+H) + for C 4 ιH 56 N 2 Oι 0 S 2 C1 835 . 3059 . Found 835 . 3059 . Example 27 Compound of Formula I: R b is H, L is -C(O)-. T is -NH- . R is - (CH ) -C≡C- (2.3' -bis (thienyl) ) The product from step li, option 1 (151 mg) , was processed as described in Example 13 (substituting 3- thiopheneboronic acid for phenylboronic acid) to provide 78 mg of the desired product. High Resolution MS (FAB) calcd (M+H) + for C 4 ιH 5 7N 2 θ 10 S 2 : 801.3455. Found 801.3462. Example 28 Compound of Formula I: R b is H r L is -C(O) -. T is -NH- , R is - (CHo) -C≡C- (5- (2-thiazolyl) -2-thienyl) The product from step li, option 1 (250 mg) , was processed as described in steps lj and Ik (substituting 2-tri-n-butylstannylthiazole for 2-tri-π- butylstannylpyridine) to provide 110 mg of the desired product . High Resolution MS (FAB) calcd (M+H) + for C 40 H5 6 N 3 O 10 S2 : 802.3402. Found 802.3412. Example 29 Compound of Formula I: R is H. L is -C(O)-. T is -NH- , R is - (CH 2 ) -C≡C- (5- (5-thiazolyl) -2-thienyl) The product from step li, option 1 (839 mg) , was processed as described in steps lj and Ik (substituting 5-tri-n-butylstannylthiazole for 2-tri-n- butylst nnylpyridine) to provide 281 mg of the desired product . High Resolution MS (FAB) calcd (M+H) + for C 40 H 56 N 3 θ 10 S 2 : 802.3402. Found 802.3400. Example 30 Compound of Formula I: RR bb iiss HH,. LL is -C(O)-, T is -NH- R is - (CHo) -C≡C- (5- (4-thiazolyl) -2-thienyl ' The product from step li, option 1 (1.08 g) , was processed as described in steps lj and Ik (substituting 4-tri-n-butylstannylthiazole for 2-tri-n- butylstannylpyridine) to provide 439 mg of the desired product . High Resolution MS (FAB) calcd (M+H) + for S 2 : 802.3402. Found 802.3402. Example 31 Compound of Formula I: R b is H. L is -C(O)-, T is -NH- . R is - (CHo) -C=C- (5- (2-methyl-5-thiazoyl) -2-thienyl) The product from step li, option 1 (100 mg) , was processed as described in steps 24a and 24b (substituting 4- (5-bromo-2-thienyl) -2-methylthiazole for 5- (4- bromophenyl) -2-furaldehyde) to provide 65trensferA mg of the desired product. High Resolution MS (FAB) calcd (M+H) + for C 41 H 58 N 3 Oι 0 S 2 : 816.3582. Found 816.3564. Example 32 Compound of Formula I: RR bb iiss HH,. LL is -C(O)-, T is -NH- , R is - (CHo) -C≡C- (5- (1 -methyl -2 -imidazolyl) -2-thienyl' The product from step li, option 2 (302 mg) , was processed as described in stepslj and Ik (substituting 1- methyl-2-tri-n-butylstannylimidazole for 2-tri-π- butylstannylpyridine and toluene for 1,4-dioxane) to provide 118 mg of the desired product. High Resolution MS (FAB) calcd (M+H) + for C 4 ιH 59 N 4 Oι 0 S : 799.3946. Found 799.3943. Example 33 Compound of Formula I: R b is H, L is -C(O)-, T is -NH- . R is - (CHo) -C≡C- (5- (2-quinoxalinyl) -2-thienyl) The product from step lh (150 mg) and was processed as described in steps 24a and 24b (substituting 2- (5- bromo-2 -thienyl ) quinoxaline for 5- (4-bromophenyl) -2- furaldehyde) to provide 61 mg of the desired product. High Resolution MS (FAB) calcd (M+H) + for C 4 5H 59 N 4 OιoS : 847.3952. Found 847.3958. Example 34 Compound of Formula I: R is H. L is -C-O)-. T is -NH- . R is - (CH 2 ) -C≡C- (5- (2-benzothiophenyl) -2-thienyl) The product from step li, option 1 (301 mg) , was processed as described in Example 13 (substituting 2- benzothiopheneboronic acid acid for phenylboronic acid) to provide 155 mg of the desired product. Example 35 Compound of F FFoorrmmuullaa III: R b is H, R is - (CHo) -C≡C- (5- (2-pyridyl) -2-thienyl' step 35a: Compound 11a from Scheme 4 A suspension of compound 4 from Scheme 4 (56 g) in ethanol (180 mL) and water (540 mL) was slowly treated with IM HC1 (130 mL) over 20 minutes, stirred for 7 hours, cooled to 0 °C, treated with IM NaOH (130 mL) , and extracted with ethyl acetate. The extract was washed with brine, dried (MgSθ4) , filtered, and concentrated. The residue was redissolved in diethyl ether (300 mL) and extracted into IM HCl (300 mL) . The extract was made basic (pH 10) with IM NaOH and extracted with ethyl acetate. The extract was washed with brine, dried (MgSθ4) , filtered, and concentrated to provide 38 g of the desired product which was used in the next step without further purification. step 35b: Compound lib from Scheme 4 The product from step 35a (37 g) was dissolved in dichloromethane (230 mL) and treated with triethylamine (16.8 mL) followed by dropwise addition of acetic anhydride (11.2 mL) over 10 minutes at room temperature, stirred for 10 hours, diluted with dichloromethane (200 mL) , washed sequentially with 5% aqueous NaHC0 3 and brine, dried (MgS0 4 ) , filtered, and concentrated to provide 40 g of the desired product which was used in the next step without further purification. step 35c: Compound 12 from Scheme 4 The product from step 35b (35.73 g) was processed as described in step lh to provide 40.2 of the crude product which was purified by flash chromatography on silica gel with a gradient of from 98:1:1 dichloromethane/methanol/ammonium hydroxide to 94:5:1 dichloromethane/methanol/ammonium hydroxide to provide 20.5 g of the desired product. step 35d: Compound 13 from Scheme 4 A solution of the product from step 35c (13.57 g, 0.02 mol) in THF (250 mL) 0 °C was treated first with 1, 1' -carbonyldiimidazole (16.8 g, 0.103 mol), then portionwise with sodium hydride (60% dispersion in mineral oil, 831 mg) over 20 minutes, stirred at room temperature for 6 days, recooled to 0 °C, diluted with ethyl acetate (500 mL) , washed sequentially with 5% aqueous sodium bicarbonate (150 mL) , water (2 x 150 mL) and brine (2 x 200 mL) , dried (Na2S0-j) , filtered, and concentrated. The residue was purified by flash chromatography on silica gel with a gradient of from 3:7 acetone/hexanes to 4:6 acetone/hexanes provide 5.75 g of the desired product . step 35e: Compound 14 from Scheme 5 A slurry of the product from step 35d (1.5 g, 0.002 mol) in acetonitrile (15 mL) and water (1 mL) was treated with ethylenediamine (1.4 mL) , stirred at room temperature for 2 hours, and concentrated. The residue was treated with ethyl acetate, washed with water, dried (Na2Sθ4) , filtered and concentrated. The residue was purified by flash chromatography on silica gel with 97.5:2:0.5 dichloromethane : methanol : ammonium hydroxide to provide 0.904 g of the desired product. step 35f: Compound 15 from Scheme 5 A solution of the product from step 35e (0.9 g, 1.25 mmol) in ethanol (25 mL) at room temperature was treated with acetic acid (285 μL) , warmed to 78 °C for 18 hours, treated with ethyl acetate (150 mL) , washed sequentially with 5% aqueous sodium bicarbonate (75 mL),and brine (2 x 75 mL) , dried (Na2Sθ4) , filtered, and concentrated. The residue was purified by flash chromatography on silica gel with 8:92 methanol/dichloromethane to provide 0.572 g of the desired product. step 35g: Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is - (CH 2 ) -C≡C- (5- (2 -benzothiophenyl ) - - thienyl) The product from step 35f (380 mg) was processed as described in step 7a (replacing 2-bromo-5- (4- pyrimidinyl) thiophene with 2- (5-bromo-2-thienyl) pyridine) and purified by flash chromatography on silica gel with a gradient of from 5:95 methanol/dichloromethane to 7:93 methanol/dichloromethane to provide 210 mg of the desired product. High Resolution MS ( FAB) calcd (M+H) + for C 44 H 61 N 4 0 9 S : 821 . 4154 . Found 821 . 4161 . Example 36 Compound of Formula I : R b is H , L is - C (O) - . T is -N (W-R d ) - . is -NH- . R d i s H . R is - ( CHo ) -C≡C- ( 5 - ( 2 -pyridyl ) - 2 - th i enyl ) step 36a: Compound 16 from Scheme 6 A solution of the product from step 35d (3 g, 4 mmol) in DMF (22 mL) was treated sequentially with 1- hexene (12 mL) and hydrazine (1.29 mL) , warmed to 58 °C for 6 hours, treated with saturated aqueous NH 4 C1, and extracted with ethyl acetate. The extract was washed sequentially with 5% aqueous sodium bicarbonate, water, and brine, dried (Na2S04) , filtered, and concentrated. The residue (2.2 g) was dissolved in methanol (50 mL) , stirred for 20 hours, and concentrated. The residue was purified by flash chromatography on silica gel with 6:3.5:0.5 ethyl acetate/hexanes/ammonium hydroxide to 98.5:2:0.5 dichloromethane/methanol/ammonium hydroxide to provide 1.6 g of the desired product. step 36b: Compound of Formula I: R b is H. L is -C(O) T is -N(W-R d )-. is -NH- . R d is H. R is - (CH ) -C≡C- (5- (2- pyridyl) -2-thienyl) A solution of the product from step 36a (350 mg) was processed as described in step 35g to provide the crude product which was purified by flash chromatography on silica gel with 2:97.5:0.5 methanol/dichloromethane/ammonium hydroxide to provide 229 mg of the desired product. High Resolution MS (FAB) calcd (M+H) + for C 42 H 5 9N 4 O 10 S : 811.3946. Found 811.3945. Example 37 Compound of Formula I: RR bb iiss HH.. LL is -C(0)-. T is -NH- R is -C(H)=CH- (5- .lH-imidazol-1-yl) -3 -pyridyl ' . step 37a: Compound of Formula I: Rb is CH 2 C(0)-. L is -C(O)-. T is -NH- . R is -C(H)=CH The title compound was prepared as described in United States Pat. No. 5,866,549, Example 1, steps la-g and Example 102, steps 120a-c. step 37b: 3-bromo-5- (ltf-imidazol-1-yl) pyridine A solution/slurry of 3 , 5-dibromopyridine (474 mg, 2.0 mmol) imidazole (136 mg, 2.0 mmol), Cs 2 C0 3 (975 mg, 3.0 mmol, and CuO (50 mg) was heated in a sealed vessel for 18 hours, cooled to room temperature, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was purified by flash chromatography on silica gel with a gradient of from 98:2 to 90:10 methanol/dichloromethane to provide 80 mg of the desired compound. MS (DCI/NH 3 ) m/z 224 and 226 (M+H) + . Step 37c: Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C (H) =CH- (5- (lff-imidazol-1-yl ) - -pyridyl ) A solution/slurry of the product from step 37a (136 mg, 0.20 mmol), the product from step 37b (56 mg, 0.250 mmol), Pd(OAc) 2 (10 mg, 0.04 mmol), tri-o-tolylphosphine (18 mg, 0.060 mmol), and triethylamine (84 mL, 0.60 mmol) in degassed acetonitrile (2 mL) was heated at 50 °C in a sealed vessel for 14 hours, treated with additional Pd(OAc) 2 (10 mg) , tri-o-tolylphosphine (18 mg) , treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was stirred in methanol for 18 hours, concentrated, and purified by flash column chromatography on silica gel with 90:10:0.5 dichloromethane/methanol/ammonium hydroxide to provide 48 mg of the desired compound. MS (ESI) 782 (M+H) + . Example 38 Compound of Formula I: R b is H. L is -C (O) - . T is -NH- . R is -C (H) =CH- (3-bromo-6-quinolinyl) step 38a: Compound of Formula I: Rb is CH 2 C (O) - . R is -C (H) =CH- (3 -bromo-6-quinolinyl) Compound 21 from Scheme 12 (136 mg) was processed as described in step 37c (substituting 3-bromo-6- iodoquinoline for the product from step 37b) and purified by flash column chromatography on silica gel with 1:1 :0.5 acetone/hexane/triethylamine to provide 170 mg of the desired product . step 38b: Compound of Formula I: R b is H, L is -C (0) - . T is -NH- . R is -C(H) =CH- (3 -bromo-6-quinolinyl) The the product from step 38a (150 mg) was stirred in methanol (10 mL) at room temperature for 48 hours, concentrated, and purified by flash column chromatography on silica gel with 50:50:0.5 methanol/dichloromethane/ammonium hydroxide to provide 130 mg of the desired product. MS '(ESI) 844, 846 (M+H) + . Example 3 9 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C (H) =CH- (3- (2-furanyl) -6-quinolinyl) step 39a: Compound of Formula I: R b is CH 2 C(Q)-. R is -C(H)=CH- (3- (2-furanyl) -6-quinolinyl) A solution of the product from step 38a, (177 mg, 0.20 mmol), 2 -tri-n-butylstannylfuran (78 mg, 0.25 mmol), tetrakis (triphenylphosphine) palladium (0) (23 mg, 0.020 mmol) in dry toluene (2 mL) was heated at 60 °C for 2, 80 °C for 2 hours, and 90 °C for 16 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was purified by flash column chromatography on silica gel with 1:1:0.5 acetone/hexane/triethylamine to provide the desired product . step 39b: Compound of Formula I: R b is H, L is -C(O)-, T is -NH- , R is -C (H) --CH- (3 - (2-furanyl) -6-quinolinyl) The product from step 39a was processed as described in step 38b to provide 102 mg of the desired product. MS (ESI) 832 (M+H) + . Example 40 Compound of F FFoorrmmuullaa II :: RR bb iiss HH.. LL is -C(O)-. T is -NH- R is -C (H) =CH- (5-bromo-3-pyridyl step 40a: Compound of Formula I: R b is CH 2 C(0)-. L is -C(0)- f T is -NH- ■ R is -C (H) =CH- (5-bromo-3 -pyridyl) A solution/slurry of the product from step 37a (136 mg, 0.20 mmol), 3 , 5-dibromopyridine (125 mg, 0.527 mmol), Pd(C 2 H 3 0 2 ) 2 (10 mg, 0.04 mmol), tri-o-tolylphosphine (18 mg, 0.060 mmol), and triethylamine (84 mL, 0.60 mmol) in degassed acetonitrile (2 mL) was heated at 50 °C in a sealed vessel for 14 hours, treated with additional Pd(C 2 H 3 0 2 )2 (10 mg) , tri-o-tolylphosphine (18 mg) , treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was purified by flash column chromatography on silica gel with 1:1:0.5 acetone/hexane/triethylamine to provide 95 mg of the desired product. step 40b: Compound of Formula I: R b is H. L is -C(0)-. T is -NH- . R is - (H) =CH- (5-bromo-3-pyridyl) The the product from step 38a (75 mg) was stirred in methanol (5 mL) at room temperature for 48 hours, concentrated, and purified by flash column chromatography on silica gel with 5:94.5:0.5 methanol/dichloromethane/ammonium hydroxide to provide 130 mg of the desired product. MS (ESI) 794, 796 (M+H) + . Example 41 Compound of Formula I: R b is H, L is -C(O)-. T is -NH- . R is -C(H)=CH- (5- (2-thienyl) -3-pyridyl) step 41a: Compound of Formula I: R b is CH 2 C(Q)-, L is -C(O) - . T is -NH-. R is -C(H)=CH- (5- (2-thienyl) -3-pyridyl) A solution of the product from step 40a, (167 mg, 0.20 mmol), tributyl (2-thienyl) stannane (79 μ , 0.25 mmol) , tetrakis (triphenylphosphine) palladium (0) (23 mg, 0.020 mmol) in dry toluene (2 mL) was heated at 90 °C for 20 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2Sθ4) , filtered, and concentrated. The residue was purified by flash column chromatography on silica gel with 50:50:0.5 acetone/hexane/triethylamine to provide the desired product . step 41b: Compound of Formula I: R b is H, L is -C(0)-. T is -NH- , R is -C (H ) =CH- (5- (2-thienyl) -3 -pyridyl. The product from step 41a was stirred in methanol at room temperature for 18 hours, concentrated, and purified by flash column chromatography on silica gel with 5:94.5:0.5 methanol/dichloromethane/ammonium hydroxide to provide 81.1 mg of the desired product. MS (ESI) 798 (M+H) + . Example 42 Compound of Formula I: R b is H. L is -C(O ) -. T is -NH- . R is -C(H)=CH- (5-phenyl-3-pyridyl) The product from step 40a, (167 mg) was processed as described in Example 41, steps 41a-b (substituting tributyl (phenyl) stannane for tributyl (2-thienyl) stannane) to provide 91.8 mg of the desired product. MS (ESI) 792 (M+H) + . Example 43 Compound of Formula I: R b is H, L is -C(O)-, T is -NH- . R is -C(H) =CH- (5- (2 -pyridyl) -3 -pyridyl ) The product from step 40a, (167 mg) was processed as described in Example 41, steps 41a-b (substituting 2- (tributylstannyl)pyridine for tributyl (2- thienyl) stannane) to provide 71.4 mg of the desired product . MS (ESI) 793 (M+H) + . Example 44 Compound of Formula I: RR bb iiss HH.. LL is -C(O)-, T is -NH- R is -C(H) =CH- (5- (3-quinolinyl) -3-pyridyl) step 44a: Compound of Formula I: Rb is CH 2 C(0)-. L is -C(O)-. T is -NH-. R is -C(H)=CH- (5- (3-quinolinyl) -3-pyridyl) A solution of the product from step 40a (167 mg, 0.2 mmol), hexamethylditin (78 mg, 0.24 mmol), tetrakis (triphenylphosphine) palladium (0) (23 mg, 0.02 mmol) and 3-bromoquinoline (27 mg, 0.2 mmol), in toluene (2 mL) was heated to 90 °C for 18 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was purified by flash column chromatography on silica gel with 50:50:0.5 acetone/hexane/triethylamine to provide the desired product . step 44b: Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C(H)=CH- (5- (3-quinolinyl) -3-pyridyl) The product from step 44a was stirred in methanol at room temperature for 18 hours, concentrated, and purified by flash column chromatography on silica gel with 5:94.5:0.5 methanol /dichloromethane/ ammonium hydroxide to provide 62.1 mg of the desired product . MS (ESI) 843 (M+H) + . Example 45 Compound of Formula I: R b is H. L is -C(O)-, T is -NH- . R is -C(H) =CH- (5- (5-pyrimidinyl) -3-pyridyl) The product from step 40a, (167 mg) was processed as described in Example 44, steps 44a-b (substituting 5- bromopyrimidine for 3-bromoquinoline to provide 71.4 mg of the desired product. + MS (ESI) 794 (M+H) Example 46 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C (H) =CH- (5- (2-pyrimidinyl) -3-pyridyl) The product from step 40a, (167 mg) was processed as described in Example 44, steps 44a-b (substituting 2- bromopyrimidine for 3-bromoquinoline to provide 24.2 mg of the desired product. MS (ESI) 794 (M+H) + . Example 47 Compound of Formula I: RR bb iiss HH,. LL is -C(0)-, T is -NH- . R is -C(H) =CH- (5- (3-pyridyl) -3-pyridyl' The product from step 40a, (417 mg) was processed as described in Example 41, steps 41a-b (substituting 3- (tributylstannyl ) pyridine for tributyl (2- thienyl) stannane) to provide 202 mg of the desired product . MS (ESI) 793 (M+H) + . Example 48 Compound of Formula I: R b is H. L is -C(0)-, T is -NH- . R is -C(H) =CH- (5- (4-isoquinolinyl) -3-pyridyl) The product from step 40a, (167 mg) was processed as described in Example 44, steps 44a-b (substituting 4- bromoisoquinoline for 3-bromoquinoline to provide 24.2 mg of the desired product. MS (ESI) 843 (M+H) + . Example 49 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C(H)=CH- (5- (3-thienyl) -3-pyridyl) The product from step 40a, (167 mg) was processed as described in Example 44, steps 44a-b (substituting 3- bromothiophene for 3-bromoquinoline to provide 24.2 mg of the desired product. MS (ESI) 798 (M+H) + . Example 50 Compound of Formula I: RR bb iiss HH,, LL is -C(O)-, T is -NH- . R is -C(H)=CH- (5- (2-furyl) -3-pyridy ) The product from step 40a, (167 mg) was processed as described in Example 41, steps 41a-b (substituting tributyl (2-furyl) stannane for tributyl (2- thienyl ) stannane) to provide 202 mg of the desired product . MS (ESI) 782 (M+H) + . Example 51 Compound of Formula I: RR bb iiss HH., LL is -C(O)-, T is -NH- R is -C(H) =CH- (5- (2- (1 , 3 -thiazolyl) ) -3-pyridyl) The product from step 40a, (167 mg) was processed as described in Example 41, steps 41a-b (substituting 2- (tributylstannyl) -1, 3-thiazole for tributyl (2- thienyl) stannane) to provide 67.2 mg of the desired product. MS (ESI) 799 (M+H) + . Example 52 Compound of Formula I: R is H. L is -C(O)-. T is -NH- . R is -C(H)=CH- (5- (5- (1.3 -thiazolyl ) ) -3-pyridyl) step 52a: Compound of Formula I: R b is H, L is -C(0)-, T is -NH-. R is -C (H. =CH- (5- (2- (trimethylsilyl) -1. - thiazol-5-yl) -3-pyridyl) The product from step 40a, (167 mg) was processed as described in step 41a (substituting 5- (tributylstannyl) - 2- (trimethylsilyl) -1 , 3-thiazole for tributyl (2- thienyl) stannane) to provide the desired product. step 52b: Compound of Formula I: R b is CH 2 C(Q)-, L is -C(O)-. T is -NH-. R is -C (H) =CH- (5- (1.3-th.i azolyl ) - 3-pyridyl) A solution of the product from step 52a in THF at room temperature was treated with 5% HC1. stirred for 1 hour, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2Sθ4) , filtered, and concentrated. The residue was purified by flash column chromatography on silica gel with 1:1:0.5 acetone/hexane/triethylamine to provide the desired product . step 52c : Compound of Formula I: R b is H. L is -C(O) T is -NH-. R is - (H) =CH- (5- (5- (1.3 -thiazolyl ) ) -3 - pyridyl) The product from step 52b was stirred in methanol at room temperature for 18 hours, concentrated, and purified by flash column chromatography on silica gel with 50:50:0.5 methanol/dichloromethane/ammonium hydroxide to provide 85.3 mg of the desired product. MS (ESI) 799 (M+H) + . Example 53 Compound of Formula I: R b is H, L is -C(O) -. T is -NH-. R is -C(H)=CH- (5- (2-amino- (1.3 -thiazol-5-yl) ) -2-thienyl) step 53a : Compound of Formula I : R b is CH 2 C (0) - . L is -C (O) - . T s -NH- . R is -C (H) =CH-B (OH) A solution of borane-THF complex (IM in THF, 11.8 mL 11.8 mmol) at -10°C was treated with 2-methyl-2-butene (2.7mL, 24 mmol), stirred at 0 °C for 2 hours, treated in one portion with a solution of the product from Step lh (2 g, 2.95 mmol) in THF (10 mL) , stirred at 0 °C for 1 hour and at room temperature for 3 hours, recooled to 0 °C, treated with and 5% aqueous sodium carbonate, and extracted with ethyl acetate. The extracts were washed with brine, dried (MgS0) , filtered, and concentrated. The residue was purified by flash chromatography on silica gel with 1:1 acetone/hexanes to provide 3.6 g of the desired compound. step 53b: Compound of Formula I: R b is H L is -C(O)-. T is -NH-. R is C (H) =CH- (5- (2-amino- (1.3 -thiazol-5-yl) ) - 2-thienyl) A solution/slurry of the product from step 53a, (72 mg, 0.10 mmol), sodium carbonate (31 mg, 0.30 mmol), tetrakis (triphenylphosphine) palladium (0) (12 mg, 0.010 mmol), and 5- (5-bromo-2-thienyl) -1 , 3-thiazol-2-amine (52 mg, 0.20 mmol) in 1:1 acetone/water (2 mL) in a sealed vessel was heated at 60 °C for 2 hours and at 80 °C for 2 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2Sθ4) , filtered, and concentrated. The residue was dissolved in methanol (5 mL) , stirred for 24 hours, and concentrated. The residue was purified by flash chromatography on silica gel with 5 : 94.5 : 0.5 methanol/dichloromethane/ammonium hydroxide then purified again by flash chromatography on silica gel with 95:5:0.5 acetone/hexane/triethylamine to provide to provide 26.7 mg of the desired product. MS (ESI) 819 (M+H) + . Example 54 Compound of Formula I: RR bb iiss HH.. LL is -C(O)-. T is -NH- R is -C(H) =CH- (5- (3-pyridyl) -2- (1.3-thiazolyl) A solution/slurry of the product from step 53a, (144 mg, 0.10 mmol), sodium carbonate (62 mg, 0.60 mmol), tetrakis (triphenylphosphine) palladium (0) (23 mg, 0.020 mmol), and 3- (2-bromo-l, 3-thiazol-5-yl) pyridine (72 mg, 0.30 mmol) in 2:1 toluene/water (3 mL) in a sealed vessel was heated at 80 °C for 16 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2Sθ4) , filtered, and concentrated. The residue was dissolved in methanol (5 mL) , stirred at room temperature for 16 hours, and concentrated. The residue was purified by flash chromatography on silica gel with 75:24.5:0.5 acetone/hexane/triethylamine to provide to provide 126.5 mg of the desired product. MS (ESI) 799 (M+H) + . Example 55 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C.H_=CH- (2 - (3-pyridyl) -5- (1.3-thiazolyl) ) A solution/slurry of the product from step 53a, (144 mg, 0.10 mmol), sodium carbonate (62 mg, 0.60 mmol), tetrakis (triphenylphosphine) palladium (0) (23 mg, 0.020 mmol), and 3- (5-bromo-l, 3 -thiazol -2 -yl) pyridine (72 mg, 0.30 mmol) in 2 : 1 toluene/water (3 mL) in a sealed vessel was heated at 80 °C for 24 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2Sθ4), filtered, and concentrated. The residue was dissolved in methanol (5 L) , stirred at room temperature for 16 hours, and concentrated. The residue was purified by flash chromatography on silica gel with 75:24.5:0.5 acetone/hexane/triethylamine to provide to provide 72 mg of the desired product . MS (ESI) 799 (M+H) + . Example 56 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- R is -C(H) =CH- (2- (5-bromo-1.3-thiazol-2-yl) -5- (1.3- thiazolyl) ) step 56a: Compound of Formula I: R b is CHC (O) - , L is -C(C -. T is -NH- . R is -C (H) =CH- (2 - (5-bromo- ( 1.3 - thiazol-2-yl) ) -5- (1. -thiazolyl) ) A solution/slurry of the product from step 53a, (400 mg, 0.80 mmol), sodium carbonate (168 mg, 1.6 mmol), tetrakis (triphenylphosphine) palladium(O) (23 mg, 0.020 mmol), and 2- (5-bromo-l , 3-thiazol-2-yl) -5-bromo-l , 3- thiazole (52 mg, 0.20 mmol) in 2 : 1 toluene/water (6 mL) in a sealed vessel was heated at 50 °C for 1 hour and at 80 °C for 16 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was purified by flash chromatography on silica gel with 50:50:0.5 acetone/hexane/triethylamine to provide to provide 187 mg of the desired product . step 56b: Compound of Formula I: R b is H. L is -C(O)-. T is -NH-. R is - (H) =CH- (2 - (5-bromo- 1.3 -thiazol -2 -yl ) -5 - (1.3-thiazolyl) ) A solution of the product from step 56a (50 mg) was stirred in methanol at room temperature for 16 hours and concentrated. The residue was purified by flash chromatography on silica gel with 75:24.5:0.5 acetone/hexane/triethylamine to provide to provide 50 mg of the desired product . MS (ESI) 883 (M+H) + Example 57 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C(H)=CH- (2- (2-thienyl) -5-thiazolyl) step 57a: Compound of Formula I: R b is CH 2 C(0)-. L is -C(O)-. T is -NH-. R is -C (H) =CH- (2- (2-thienyl) -5- thiazolyl) A solution/slurry of the product from step 53a, (470 mg, 0.650 mmol), sodium carbonate (172 mg, 1.64 mmol), tetrakis (triphenylphosphine) palladium (0) (58 mg, 0.050 mmol), and 5 -bromo-2- (2-thienyl) -1, 3 -thiazole (200 mg, 0.820 mmol) in 25:1 toluene/water (52 mL) in a sealed vessel was heated at 50 °C for 1 hour and at 80 °C for 16 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was purified by flash chromatography on silica gel with 50:50:0.5 acetone/hexane/triethylamine to provide to provide 400 mg of the desired product. step 57b: Compound of Formula I: R b is H. L is -C(0)- f T is -NH- , R is -C (H) =CH- (2 - (2 -thienyl ) -5-thiazolyl ) A solution of the product from step 56a (400 mg) was stirred in methanol (20 mL) at room temperature for 16 hours and concentrated. The residue was purified by flash chromatography on silica gel with 95:4.5:0.5 dichloromethane/methanol/ammonium hydroxide to provide to provide 344 mg of the desired product. MS (ESI) 804 (M+H) + . Example 58 step 58a: Compound of Formula I: R b is CHC(0)-, L is -C(O)-. T is -NH- . R is -C (H) =CH- (2 - (2 -pyrazinyl ) -5- (1.3-thiazolyl) ) A solution/slurry of the product from step 53a, (158 mg, 0.332 mmol), sodium carbonate (3 equivalents), tetrakis (triphenylphosphine) palladium (0) (0.1 equivalents), and 2- (5-bromo-l, 3 -thiazol-2-yl) yrazine (1.5 equivalents) in 2:1 toluene/water (6 mL) in a sealed vessel was heated at 80 °C for 20 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was purified by flash chromatography on silica gel with 50:50:0.5 acetone/hexane/triethylamine to provide to provide 103 mg of the desired product. step 58b: Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C(H) =CH- (2- (2 -pyrazinyl) -5- (1.3-thiazolyl) ) The residue was dissolved in methanol (5 mL) , stirred at room temperature for 20 hours, and concentrated. The residue was purified by flash chromatography on silica gel with 95:4.5:0.5 dichloromethane/methanol/ammonium hydroxide to provide to provide 344 mg of the desired product. MS (ESI) 800 (M+H) + . Example 59 Compound of Formula I: RR bb iiss HH., LL is -C(O)-, T is -NH- R is -C(H)=CH- (2- (5-pyrimidinyl) -5- (1.3-thiazolyl) ) The product from step 53a (180 mg) was processed as described in Example 58, steps 58a-b, (substituting 5- (5- bromo-1, 3-thiazol-2-yl) pyrimidine for 2- (5-bromo-l, 3- thiazol-2-yl)pyrazine) to provide 43 mg of the desired product. MS (ESI) 800 (M+H) + . Example 60 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C(H)=CH- (2- (5- (1.3 -thiazol-5-yl) -5- (1.3-thiazolyl) ) The product from step 53a (247 mg) was processed as described in Example 58, steps 58a-b, (substituting 2- (1, 3-thiazol-5-yl) -5-bromo-l, 3-thiazole for 2- (5-bromo- 1, 3-thiazol-2-yl)pyrazine) to provide 131 mg of the desired product. MS (ESI) -805 (M+H) + . Example 61 Compound of Formula I: RR bb iiss HH,, LL is -C(O)-, T is -NH- R is -C(H) =CH- (5- (2-pyrimidinyl) -2-thienyl) The product from step 53a (250 mg) was processed as described in Example 58, steps 58a-b, (substituting 2- (5- bromo- 2 -thienyl) pyrimidine for 2- (5-bromo-l , 3 -thiazol-2 - yl)pyrazine and heating at 100 °C for 48 hours) to provide 92 mg of the desired product. MS (ESI) 799 (M+H) + . Example 62 Compound of Formula I: R b ' iiss HH.. LL ii-s -C(O)-, T is -NH- R is -C(H) =CH- (5- (2-pyrazinyl) -2-thienyl) The product from step 53a (880 mg) was processed as described in Example 58, steps 58a-b, (substituting 2- (5- bromo-2 -thienyl) pyrazine for 2- (5-bromo-l , 3-thiazol-2 - yl)pyrazine and heating at 100 °C for 24 hours) to provide 350 mg of the desired product. MS (ESI) 799 (M+H) + . Example 63 Compound of Formula I: R b is H. L is -C(Q. -■ T is -NH- . R is -C(H)=CH- (5- (2- (1.3-thiazolyl) -2-thienyl) The product from step 53a (220 mg) was processed as described in Example 58, steps 58a-b, (substituting 2- (5- bromo-2 -thienyl) -1, 3-thiazole for 2- (5-bromo-l , 3-thiazol- 2-yl) pyrazine and heating at 100 °C for 24 hours) to provide 86 mg of the desired product. MS (ESI) 805 (M+H) + . Example 64 Compound of Formula I: RR bb iiss HH,, LL is -C(O)-, T is -NH- R is -C_H)=CH- (5- (4-pyrimidinyl) -2-thienyl ) The product from step 53a (250 mg) was processed as described in Example 58, steps 58a-b, (substituting 4- (5- bromo-2-thienyl) pyrimidine for 2- (5-bromo-l , 3 -thiazol-2- yl) pyrazine and heating at 100 °C for 24 hours) to provide 64 mg of the desired product . MS (ESI) 799 (M+H) + . Example 65 Compound of Formula I: R b is H. L is -C(O)-. T is -NH-. R is - (H) =CH- (4- (3-pyridyl) -2- (1.3- thiazolyl) ) step 65a: Compound of Formula I: R b is CH 2 C(Q)-. L is -C(O) -. T is -NH-. R is -C(H)=CH- (4-bromo-2- (1.3-thiazolyl) ) The product from step 53a (362 mg) was processed as described in Example 55 (substituting 1, 4-dibromo-l, 3- thioazole for 3- (5-bromo-l, 3 -thiazol-2-yl) pyridine) to provide 384 mg of the desired compound. step 65b: Compound of Formula I: R b is H. L is -C(O)-. T is -NH-. R is -C(H)=CH- (4- (3-pyridyl) -2- (1.3- thiazolyl) ) The product from step 65a (170) was processed as described in Example 41, steps 41a-b, (substituting 3- (tributylstannyl) pyridine for tributyl (2- thienyl) stannane) to provide 25.6 mg of the desired product . MS (ESI) 799 (M+H) + . Example 66 Compound of Formula I: R b is H, L is -C (0) - , T is -NH- . R is -C(H ) =CH- ( 4- (3-pyridyl) -2- (1.3 -thiazolyl ) ) The product from step 65a (100 mg) was processed as described in Example 41, steps 41a-b, (substituting 2- (tributylstannyl) -1, 3-thiazole for tributyl (2- (1 , 3- thiazolyl) stannane) to provide 80 mg of the desired product . MS (ESI) 805 (M+H) + . Example 67 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C(H)=CH- (4- (2-thienyl) -2- (1.3-thiazolyl) ) The product from step 65a (100 mg) was processed as described in Example 41, steps 41a-b, (substituting 2- ( tributylstannyl ) -1, 3-thiazole for tributyl (2- (1 , 3- thiazolyl) stannane and heating at 60 °C for 2 hours and at 90 °C for 20 hours) to provide 42.7 mg of the desired product. MS (ESI) 804 (M+H) + . Example 68 Compound of F Foorrmmuullaa II:: R b is H. R is -C(H)=CH- (5- (3-pyridyl) -2-thienyl : step 68a: Compound of Formula I: R b is CHC(0)-, L is -C(O)-. T is -NH-. R is -C (H) =CH- (5-iodo-2 -thienyl A solution/slurry of the product from step 53a (724 mg, 1.0 mmol), 2 , 5-diiodothiophene (672 g, 2.0 mmol), sodium carbonate (315 g, 3.0 mol), and tetrakis (triphenylphosphine) palladium (0) (58 g, 0.05 mmol) was heated at 90 °C for 44 hours, cooled, treated with ethyl acetate, washed with 5% aqueous NaHC0 3 and brine, dried (Na2S04) , filtered, and concentrated. The residue was purified by flash column chromatography on silica gel with 50:50:0.5 acetone/hexane/triethylamine to provide 340 mg of the desired product. step 68b: Compound of Formula I: R b is H. L is -C(O)-. T is -NH-. R is -C(H)=CH- (5- (3-pyridyl) -2-thienyl) The product from step 65a (100 mg) was processed as described in Example 41, steps 41a-b, (substituting 3- (tributylstannyl) pyridine for tributyl (2- (1, 3- thiazolyl) stannane and heating at 80 °C for 2 hours and at 100 °C for 6 hours) to provide 40.9 mg of the desired product. MS (ESI) 798 (M+H) + . Example 69 Compound of Formula I: R b is L is -C(O)-. T is -NH- , R is H. -C(H)=CH- (5- (2-pyrazinyl) -2-thienyl) step 69a: Compound of Formula I: R b is CHC(0)-. L is -C(O)-. T is -NH-. R is -C (H) =CH- (5-bromo-2 -thienyl ) The product from step 53a was processed as described in step 68a (substituting 2 , 5-dibromothiophene for 2,5- diiodothiophene to provide 127 mg of the desired product. step 69b: Compound of Formula I: R b is H, L is -C(O)-. T is -NH- , R is -C (H) =CH- (5- (2 -pyrazinyl) -2 -thienyl ) The product from step 69a (420 mg) was processed as described in Example 41, steps 41a-b, (substituting 2- (tributylstannyl) pyrazine for tributyl (2- (1 , 3 - thiazolyl) stannane) to provide 127 mg of the desired product . MS (ESI) 799 (M+H) + . Example 70 Compound of Formula I: RR bb iiss HH.. LL is -C(O)-, T is -NH- R is -C(H) =CH- (5- (5-pyrimidinyl) -2-thienyl) The product from step 69a (250 mg) was processed as described in Example 41, steps 41a-b, (substituting 5- (tributylstannyl) pyrimidine for tributyl (2- (1 , 3- thiazolyl) stannane) to provide 377 mg of the desired product . MS (ESI) 799 (M+H) + . Example 71 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C(H) =CH- (5- (3 ,4-dichlorophenyl) -2-thienyl) The product from step 69a (120 mg) was processed as described in Example 44, steps 44a-b, (substituting 4- bromo-1 , 2 -dichlorobenzene for 3-bromoquinoline) to provide 20 mg of the desired product. MS (ESI) 866 (M+H) + . Example 72 Compound of Formula I: RR bb iiss HH,, LL is -C(0)-. T is -NH- . R is -C(H)=CH- (5- (3-fluorophenyl) -2-thieny ) The product from step 69a (120 mg) was processed as described in Example 44, steps 44a-b, (substituting 1- bromo-3-fluorobenzene for 3-bromoquinoline) to provide 26 mg of the desired product . Example 73 Compound of Formula I: RR bb iiss HH,. LL is -C(O)-, T is -NH- R is -C(H)=CH- (5- (5- (1. -thiazoyl) ) -2-thienyl) The product from step 69a (175 mg) was processed as described in Example 52, steps 52a-c, (substituting 5- (tributylstannyl) -2- (trimethylsilyl) -1, 3-thiazole for tributylstannyl) -2- (trimethylsilyl) -1, 3-thiazole) to provide 25 mg of the desired product. MS (ESI) 816 (M+H) + . Example 74 Compound of Formula I: R b is H. L is -C(O)-. T is -NH- . R is -C(H)=CH-(2.2'-bisthienyl) The product from step 69a (175 mg) was processed as described in Example 41, steps 41a-b, to provide 9 mg of the desired product. MS (ESI) 804 (M+H) + . Example 75 Compound of Formula I: R b is H, L is -C(O)-, T is -NH- . R is -C(H)=CH- (5- (2-pyridyl) -2-thienyl) The product from step 69a (120 mg) was processed as described in Example 41, steps 41a-b, (substituting 2- (tributylstannyl) yridine for tributyl (2- (1, 3 - thiazolyl) stannane) to provide 71 mg of the desired product . MS (ESI) 799 (M+H) + . Example 76 Compound 1 ooff FFoorrmmuullaa II:: RR bb iiss HH.. LL is -C(O)-, T is -NH- R is -C(H)=CH- (5- (3-thienyl) -2-thienyl) The product from step 69a (150 mg) and 3- thienylboronic acid (30 mg) were processed as described in Example 41, steps 41a-b to provide 79 mg of the desired product. MS (ESI) 804 (M+H) + . Example 77 Compound of Formula I: R b is H, L is -C (O) - , T is -NH- . R is -C(H -=CH- (5- (2-furanyl) -2-thienyl) The product from step 69a (120 mg) and 2- (tributylstannyl) furan (66 mg) were processed as described in Example 41, steps 41a-b, to provide 74 mg of he desired product. MS (ESI) 787 (M+H) + .

Claims: 117 WE CLAIM: 1. A compound selected from the group consisting of a compound of formula I I; a compound of formula II II; and a compound of formula III III or a pharmaceutically acceptable salt, solvate, ester or prodrug thereof, wherein either: (a) Y and Z taken together define a group X, and X is selected from the group consisting of (1) =0, (2) =N-0H, (3) =N-0-R 1 where R 1 is selected from the group consisting of (a) unsubstituted Cχ-Cι. 2 alkyl, (b) C 1 -C 12 alkyl substituted with aryl, (c) C 1 -C 12 alkyl substituted with substituted aryl, (d) C 1 -C 12 alkyl substituted with heteroaryl , (e) Ci-Ci 2 alkyl substituted with substituted heteroaryl, (f) C 3 -Ci 2 cycloalkyl, and (g) -Si-(R 2 ) (R 3 ) (R 4 ) wherein R 2 , R 3 and R 4 are each independently selected from Cχ-Cι 2 alkyl and aryl ; and (4) =N-0-C(R 5 ) (R 6 ) -O-R 1 where R 1 is as previously defined and R 5 and R 6 are each independently selected from the group consisting of (a) hydrogen, (b) unsubstituted C 1 -C 12 alkyl, (c) C ! -Ci 2 alkyl substituted with aryl, (d) Cι-C 12 alkyl substituted with substituted aryl, (e) C 1 -C 1 2 alkyl substituted with heteroaryl, and (f) C 1 -C 12 alkyl substituted with substituted heteroaryl, or R 5 and R 6 taken together with the atom to which they are attached form a C 3 -C 12 cycloalkyl ring; or (b) one of Y and Z is hydrogen and the other is selected from the group consisting of ( 1 ) hydrogen, (2) hydroxy, (3) protected hydroxy, and (4) NR 7 R 8 wherein R 7 and R 8 are independently selected from hydrogen and Ci-Cg alkyl, or R 7 and R 8 are taken with the nitrogen atom to which they are connected to form a 3- to 7-membered ring which, when the ring is a 5- to 7-membered ring, may optionally contain a hetero function selected from the group consisting of -0-, -NH- , -N ( C 1 -C e -alkyl-) -, -N(aryl)-, -N(aryl-C-.-C 6 -alkyl-) - , -N (substituted-aryl-Cι-C 3 -alkyl- ) - , -N (heteroaryl) - , -N (heteroaryl-Cι-C 6 -alkyl-) -, -N (substituted-heteroaryl- Ci-Cg-alkyl- ) - , and -S- or -S(0) n -, wherein n is 1 or 2 ; R a is hydrogen or hydroxy; R b is hydrogen or a hydroxy protecting group; L is methylene or carbonyl, provided that when L is methylene, T is -0-; T is selected from the group consisting of -0-, -NH- , and -N(W-R d )-, wherein W is absent or is selected from the group consisting of -0- , -NH-C0-, -N=CH- and -NH- , and R d is selected from the group consisting of ( 1 ) hydrogen , (2) Cι-C 6 alkyl optionally substituted with one or more substituents selected from the group consisting of (a) aryl, (b) substituted aryl, (c) heteroaryl, (d) substituted heteroaryl, (e) hydroxy, (f ) Ci-Cg alkoxy, (g) NR 7 R 8 , wherein R 7 and R 8 are as defined previously, and (h) -CH 2 -M-R 9 , wherein M is selected from the group consisting of (i) -C(0)-NH-, (ii) -NH-C(O)-, (iii) -NH-, (iv) -N=, (v) -N(CH 3 ) -, (vi) -NH-C(0)-0- (vii) -NH-C(0)-NH- (viii) -0-C(0)-NH- (ix) -0-C(0)-0- (x) -0-, (xi) -S(0) n -, wherein n is 0, 1 or 2 , (xii) -C(0)-0-, (xiii) -O-C(O)-, and (xiv) -C(O)-; and wherein R 9 is selected from the group consisting of: (i) Cι-C 6 alkyl, optionally substituted with a substituent selected from the group consisting of (aa) aryl, (bb) substituted aryl, (cc) heteroaryl, and (dd) substituted heteroaryl; (ii) aryl, (iii) substituted aryl, (iv) heteroaryl, (v) substituted heteroaryl, and (vi) heterocycloalkyl; (3) C 3 -C 7 cycloalkyl, (4) aryl, (5) substituted aryl, (6) heteroaryl, and (7) substituted heteroaryl; X' is selected from the group consisting of Cι-Cι 0 alkyl, C 3 -C 10 alkenyl, and C 3 -Cι 0 alkynyl; Y' and Z' are independently selected from the group consisting of: (c) optionally substituted aryl, and (d) optionally substituted heteroaryl, with the proviso that both Y' and Z' are not both phenyl, and with the further proviso that Y' is not isoxazole when Z' is thiophenyl ; and A, B, D and E are independently selected from the group consisting of: (a) hydrogen; (b) Ci-C 6 alkyl, optionally substituted with one or more substituents selected from the group consisting of: ( i ) aryl ; (ii) substituted aryl; (iii) heteroaryl; (iv) substituted heteroaryl; (v) heterocycloalkyl; (vi) hydroxy; (vii) Cι-C 6 alkoxy; (viii) halogen consisting of Br, Cl, F or I ; and (ix) NR 7 R 8 , wherein R 7 and R 8 are as previously defined; ( c ) C 3 -C 7 cycloalkyl ; (d) aryl ; (e) substituted aryl ; (f) heteroaryl; (g) substituted heteroaryl; (h) heterocycloalkyl; and (i) a group selected from option (b) above further substituted with -M-R 9 , wherein M and R 9 are as previously defined, with the proviso that at least two of A, B, D and E are hydrogen, ; or any one pair of substituents, consisting of AB, AD, AE, BD, BE or DE, is taken together with the atom or atoms to which they are attached to form a 3- to 7- membered ring optionally containing a hetero function selected from the group consisting of -0-, -NH-, -N(Cι-C 6 alkyl-) -, -N (aryl-Cι-C 3 alkyl- )- , -N (substituted aryl-Ci-Cg alkyl-)-, -N (heteroaryl -Cι-C 6 alkyl-)-, -N (substituted heteroaryl- Cι-C 6 alkyl-) - , -S- or -S(0) n -, wherein n is 1 or 2 , -C(0)-NH, -C(0)-NR 12 -, wherein R 12 is selected from the group consisting of hydrogen, Cι-C 3 alkyl, Cι-C 3 alkyl substituted with aryl, substituted aryl, heteroaryl, or substituted heteroaryl, -NH-C(O)-, and -NR 12 -C(0) - . 2. A compound according to Claim 1 wherein L is carbonyl . 3. A compound according to Claim 1 wherein T is -NH-. . A compound according to Claim 1 wherein R b is a hydroxy protecting group. 5. A compound according to Claim 1 wherein R b is hydrogen . 6. A compound according to Claim 1 wherein X' is C 3 alkenyl . 7. A compound according to Claim 1 wherein X' is C 3 alkynyl . 8. A compound according to Claim 1 wherein Y' and Z' are independently selected from the group consisting of thienyl, furanyl , pyridyl, pyrimidinyl, piperidinyl, phenyl , naphthyl , benzothiophenyl , benzofuranyl , thiazolyl, pyrazinyl, quinoxalinyl , imidazolyl , triazolyl, tetrazolyl, benzimidazolyl, quinolinyl, and isoquinolinyl, all of which may be optionally substituted. 9. A compound according to Claim 8 wherein Y' is thienyl . 10. A compound according to Claim 8 wherein Z' is pyridyl . 11. A compound according to Claim 1, wherein -X' , Y' , and Z' combine to form a group R, and R is selected from the group consisting of - (CH 2 ) -C≡C- (5- (2-pyridyl) -2-thienyl) , - (CH 2 ) -C≡C- (5- (3-pyridyl) -2-thienyl) , - ( CH 2 ) - CsC - 5- 4 -pyridyl) -2-thienyl) , - ( CH 2 ) - C≡C - 5- 5 -pyrimidinyl) -2-thienyl) , - ( CH 2 ) - C≡C - 5- 2 -pyrimidinyl) -2-thienyl) , - ( CH 2 ) - C≡C - 5- 2 -pyrazinyl) -2-thienyl) , - (CH 2 ) - C≡C- 5- 5-cyano-3-pyridyl) -2-thienyl) , - ( CH 2 ) - C≡C - 5- 5-carboxamido-3-pyridyl) -2-thienyl) , - ( CH 2 ) - C≡C- 5- 5-ethoxycarbonyl-3-pyridyl) -2-thienyl) , -(CH 2 ) -C≡C- 5- 5-N, N-dimethylcarboxamido-3 -pyridyl ) -2 - thienyl) , - (CH 2 ) -C≡C- 5- 5-N' ,N' -dimethylhydrazidocarbonyl-3- pyridyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (phenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (3-methoxyphenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (3 -fluorophenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (3-chlorophenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (3 , 5-dichlorophenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (3-methylphenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (3-trifluoromethylphenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (3-acetamidophenyl) -2-thienyl) , -(CH 2 )-C≡C- 5- (3-nitrophenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- ( -fluorophenyl) -2-thienyl) , - (CH 2 ) -C≡C- 5- (2-furanyl) -2-thienyl) , - (CH 2 ) -C≡C- 4- (5-formyl-2-furanyl) phenyl) , - (CH 2 ) -C≡C- 4 - (5-formyl-2 -furanyl ) phenyl ) , - (CH 2 ) -C≡C- 4 - (5-formyl-2 -furanyl ) phenyl ) , - (CH 2 ) -C≡C- 2,2' -bisthienyl) , -(CH 2 )-C≡C- 2- (5-chloro-2-thienyl) thienyl) , - (CH 2 ) -C≡C- 2, 3' -bis (thienyl) ) , - (CH 2 ) -C≡C - (5- (2-thiazolyl) -2-thienyl) , - (CH 2 ) -C≡C - (5- (5-thiazolyl) -2-thienyl) , - (CH 2 ) -C≡C - (5- (4-thiazolyl) -2-thienyl) , - (CH 2 ) -C≡C - (5- (2-methyl-5-thiazoyl) -2-thienyl) , - (CH 2 ) -C≡C- (5- (1 -methyl -2 -imidazolyl) -2-thienyl) , - (CH 2 ) -C≡C- (5- (2-quinoxalinyl) -2-thienyl) , - (CH 2 ) -C≡C - (5- (2-benzothiophenyl) -2-thienyl) , - (CH 2 ) -C≡C - (5- (2 -pyridyl) -2-thienyl) , - (CH 2 ) -C≡C - (5- (2-benzothiophenyl) -2-thienyl) , -C(H)=CH- lH-imidazol-1-yl) -3-pyridyl) , -C(H) =CH- 2-furanyl) -6-quinolinyl) , -C(H) =CH- 2-thienyl) -3-pyridyl) , -C(H) =CH- 5-phenyl -3 -pyridyl) , -C(H) =CH- 5- 2 -pyridyl) -3-pyridyl) , -C(H)=CH- 5- 3-quinolinyl) -3-pyridyl) , -C(H)=CH- 5- 5-pyrimidinyl) -3-pyridyl) , -C(H)=CH- 5- 3-pyridyl) -3-pyridyl) , -C(H) =CH- 5- 4-isoquinolinyl) -3-pyridyl) , -C(H) =CH- 5- 3 -thienyl) -3-pyridyl) , -C(H) =CH- 5- 2-furyl) -3-pyridyl) , -C(H) =CH- 5- 2- (1, 3-thiazolyl) ) -3-pyridyl) , -C(H) =CH- 5- 2- (trimethylsilyl) -1, 3-thiazol-5-yl) -3- pyridyl) , -C(H)=CH- 5- 1, 3-thiazolyl) -3-pyridyl) , -C(H)=CH- 5- 2-amino- (1, 3-thiazol-5-yl) ) -2-thienyl) , -C(H)=CH- 5- 2-amino- (1, 3 -thiazol-5-yl) ) -2-thienyl) , -C(H) =CH- 5- 3-pyridyl) -2- (1, 3-thiazolyl) ) , -C(H)=CH- 2- 3-pyridyl) -5- (1, 3-thiazolyl) ) , -C(H) =CH- 2- 5-bromo-l, 3 -thiazol-2 -yl) -5- (1,3- thiazolyl 5-bromo- (1, 3-thiazol-2-yl) ) -5- (1, 3- 5 -bromo-1, 3-thiazol-2 -yl) -5- (1,3- 2-thienyl) -5-thiazolyl) , -pyrazinyl) -5- (1 , 3-thiazolyl) ) , 5 -pyrimidinyl) -5- (1, 3-thiazolyl) ) , 5- (l,3-thiazol-5-yl) -5- (1, 3 -thiazolyl) ) , -pyrimidinyl) -2-thienyl) , -pyrazinyl) -2-thienyl) , (1, 3-thiazolyl) -2-thienyl) , -pyrimidinyl) -2-thienyl) , -pyridyl) -2- (1 , 3-thiazolyl) ) , 3-pyridyl) -2- (1, 3-thiazolyl) ) , 3-pyridyl) -2- (1, 3-thiazolyl) ) , 2-thienyl) -2- (1, 3-thiazolyl) ) , 3-pyridyl) -2-thienyl) , 2-pyrazinyl) -2-thienyl) , 5 -pyrimidinyl) -2-thienyl) , 3, 4-dichlorophenyl) -2-thienyl) , 3 -fluorophenyl) -2-thienyl) , 5- (1, 3-thiazoyl) ) -2-thienyl) , ' -bisthienyl ) , 2 -pyridyl) -2-thienyl) , 3 -thienyl) -2-thienyl) , and 2-furanyl) -2-thienyl) . 12. A pharmaceutical composition comprising a pharmaceutically effective amount of a compound of Claim 1 in combination with a pharmaceutically acceptable carrier. 13. A method of treating a bacterial infection in a mammal in need of such treatment which comprises administering to said mammal a therapeutically effective amount of a compound of Claim 1. 14. A process for preparing a compound selected from the group consisting of a compound of formula I I; a compound of formula I I ii ; and a compound of formula III II or a pharmaceutically acceptable salt, solvate, ester or prodrug thereof, wherein either: (a) Y and Z taken together define a group X, and, X is selected from the group consisting of (1) =0, (2) =N-OH, (3) =N-0-R 1 where R 1 is selected from the group consisting of (a) unsubstituted C 1 -C 12 alkyl, (b) C 1 -C 12 alkyl substituted with aryl, (c) C 1 -C 12 alkyl substituted with substituted aryl, (d) C 1 -C 12 alkyl substituted with heteroaryl , (e) C 1 -C 12 alkyl substituted with substituted heteroaryl, ( f ) C 3 -Cι 2 cycloalkyl , and (g) - Si - (R 2 ) (R 3 ) (R 4 ) wherein R 2 , R 3 and R 4 are each independently selected from Cχ-Cι 2 alkyl and aryl ; and (4) =N-0-C(R 5 ) (R 6 ) -O-R 1 where R 1 is as previously defined and R 5 and R 6 are each independently selected from the group consisting of (a) hydrogen, (b) unsubstituted Cι-C 12 alkyl, (c) C 1 -C 12 alkyl substituted with aryl, (d) Cχ-Cι 2 alkyl substituted with substituted aryl, (e) C 1 -C 12 alkyl substituted with heteroaryl, and (f) C 1 -C 12 alkyl substituted with substituted heteroaryl, or R 5 and R 6 taken together with the atom to which they are attached form a C3-C12 cycloalkyl ring; or (b) one of Y and Z is hydrogen and the other is selected from the group consisting of (1) hydrogen, ( 2 ) hydroxy, (3) protected hydroxy, and (4) NR 7 R 8 wherein R 7 and R 8 are independently selected from hydrogen and Cι-C 6 alkyl, or R 7 and R 8 are taken with the nitrogen atom to which they are connected to form a 3- to 7-membered ring which, when the ring is a 5- to 7-membered ring, may optionally contain a hetero function selected from the group consisting of -0-, -NH- , -N(C 1 -C 6 -alkyl-) -, -N(aryl)-, -N (aryl-d-Cg-alkyl-) - , -N ( substituted-aryl -Cι-C 6 -alkyl-) - , -N (heteroaryl) - , -N(heteroaryl-Cι-Cg-alkyl-) - , -N (substituted-heteroaryl- Cι-C 6 -alkyl-) - , and -S- or -S(0) n -, wherein n is 1 or 2 ; R a is hydrogen or hydroxy; R b is hydrogen or a hydroxy protecting group; L is methylene or carbonyl, provided that when L is methylene, T is -O- ; T is selected from the group consisting of -0-, -NH-, and -N( -R d )-, wherein is absent or is selected from the group consisting of -0-, -NH-C0-, -N=CH- and -NH- , and R d is selected from the group consisting of (1) hydrogen, (2) Ci-Cβ alkyl optionally substituted with one or more substituents selected from the group consisting of (a) aryl, (b) substituted aryl, (c) heteroaryl, (d) substituted heteroaryl, (e) hydroxy, (f) C x - C 6 alkoxy, (g) NR 7 R 8 , wherein R 7 and R 8 are as defined previously, and (h) -CH 2 -M-R 9 , wherein M is selected from the group consisting of (i) -C(0)-NH-, (ii) -NH-C(O)-, (iii) -NH-, (iv) -N=, (v) -N(CH 3 )-, (vi) -NH-C(0)-0- (vii) -NH-C(0)-NH- (viii) -0-C(0)-NH- (ix) -0-C(0)-0- (x) -o-, (xi) -S(0) n -/ wherein n is 0, 1 or 2 , (xii) -C(0)-0-, (xiii) -O-C(O)-, and (xiv) -C(O)-; and wherein R 9 is selected from the group consisting of : (i) Cι-C 6 alkyl, optionally substituted with a substituent selected from the group consisting of (aa) aryl, (bb) substituted aryl, (cc) heteroaryl, and (dd) substituted heteroaryl; (ii) aryl, (iii) substituted aryl, (iv) heteroaryl, (v) substituted heteroaryl, and (vi) heterocycloalkyl; (3) C 3 -C7 cycloalkyl, (4) aryl, (5) substituted aryl, (6) heteroaryl, and (7) substituted heteroaryl; X' is selected from the group consisting of Cx-Cio alkyl, C 3 -C 10 alkenyl, and C 3 -C 10 alkynyl; Y' and Z' are independently selected from the group consisting of: (e) optionally substituted aryl, and (f) optionally substituted heteroaryl, with the proviso that both Y' and Z' are not both phenyl, and with the further proviso that Y' is not isoxazole when Z' ' is thiophenyl; and A, B, D and E are independently selected from the group consisting of: (a) hydrogen; (b) Cι-C 6 alkyl, optionally substituted with one or more substituents selected from the group consisting of: (i) aryl ; (ii) substituted aryl; (iii) heteroaryl; (iv) substituted heteroaryl; (v) heterocycloalkyl; (vi) hydroxy; (vii) Cι-C 3 alkoxy; (viii) halogen consisting of Br, Cl , F or I ; and (ix) NR 7 R 8 , wherein R 7 and R 8 are as previously defined; (c) C 3 -C 7 cycloalkyl; (d) aryl; (e) substituted aryl; (f) heteroaryl; (g) substituted heteroaryl; (h) heterocycloalkyl; and (i) a group selected from option (b) above further substituted with -M-R 9 , wherein M and R 9 are as previously defined, with the proviso that at least two of A, B, D and E are hydrogen, ; or any one pair of substituents, consisting of AB, AD, AE, BD, BE or DE, is taken together with the atom or atoms to which they are attached to form a 3- to 7- membered ring optionally containing a hetero function selected from the group consisting of -0-, -NH-, -N(C X -C 6 alkyl-) -, -N (aryl-d-Cg alkyl-) - , -N (substituted aryl-Cx-Cg alkyl-)-, -N (heteroaryl-d-Cg alkyl-)-, -N (substituted heteroaryl- Cχ-Cg alkyl-) - , -S- or -S(0) n -, wherein n is 1 or 2, -C(0)-NH, -C(0)-NR 12 -, wherein R 12 is selected from the group consisting of hydrogen, C ι -C 3 alkyl, Cχ-C 3 alkyl substituted with aryl, substituted aryl, heteroaryl, or substituted heteroaryl, -NH-C(O)-, and -NR 12 -C(0) -; wherein said process comprises: coupling a compound selected from the group consisting of a compound of formula I a a compound of formula II £ ιι a ; and a compound of formula IIF III C wherein R b is a hydroxy protecting group, and Y, Z, X, R 1 , R 2 , R 3 , R 4 , R Ξ , R 6 , R 7 , R 8 , n, R a , L, T, R d , , M, £ 9 , X', Y' , Z', A, B, D, E, R 12 are as previously defined; with a compound selected from the group consisting of X 1 -Y'-Z' and X x -Y' -X 2 , wherein X 1 and X 2 are independently selected from the group consisting of bromide, iodide, sulfonate, trialkylstannane, boronic acid, and borate, and Y' and Z' are as previously defined; in the presence of a palladium catalyst, with the proviso that when X 1 -Y' -X 2 is employed, a subsequent coupling reaction is performed with X 3 -Z' , wherein X 3 is selected from the group consisting of bromide, iodide, sulfonate, trialkylstannane, boronic acid, and borate, and Z' is as previously defined; (b) optionally deprotecting; and (c) optionally isolating the desired compound.

Inventors: CLARK RICHARD F, MA ZHENKUN, OR YAT SUN, RUPP MICHAEL J, CLARK, RICHARD, F., MA, ZHENKUN, OR, YAT, SUN, RUPP, MICHAEL, J.
Applicants: ABBOTT LAB, ABBOTT LABORATORIES
Application year: 2000
Main classification: C07H17
IPC codes: A61K31, A61P31, C07H17