- Structure-activity relationship study on a novel series of cyclopentane-containing macrocyclic inhibitors of the hepatitis C virus NS3/4A protease leading to the discovery of TMC435350
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SAR analysis performed with a limited set of cyclopentane-containing macrocycles led to the identification of N-[17-[2-(4-isopropylthiazole-2-yl)-7-methoxy-8-methylquinolin-4-yloxy]- 13-methyl-2,14-dioxo-3,13-diazatricyclo [13.3.0.04,6]octadec-7-ene-4-carbonyl](cyclopropyl)sulfonamid e (TMC435350, 32c) as a potent inhibitor of HCV NS3/4A protease (Ki = 0.36 nM) and viral replication (replicon EC50 = 7.8 nM). TMC435350 also displayed low in vitro clearance and high permeability, which were confirmed by in vivo pharmacokinetic studies. TMC435350 is currently being evaluated in the clinics.
- Raboisson, Pierre,de Kock, Herman,Rosenquist, Asa,Nilsson, Magnus,Salvador-Oden, Lourdes,Lin, Tse-I,Roue, Natalie,Ivanov, Vladimir,Waehling, Horst,Wickstroem, Kristina,Hamelink, Elizabeth,Edlund, Michael,Vrang, Lotta,Vendeville, Sandrine,Van de Vreken, Wim,McGowan, David,Tahri, Abdellah,Hu, Lili,Boutton, Carlo,Lenz, Oliver,Delouvroy, Frederic,Pille, Geert,Surleraux, Dominique,Wigerinck, Piet,Samuelsson, Bertil,Simmen, Kenneth
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scheme or table
p. 4853 - 4858
(2009/05/11)
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- Discovery of novel potent and selective dipeptide hepatitis C virus NS3/4A serine protease inhibitors
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Starting from the previously reported HCV NS3/4A protease inhibitor BILN 2061 (1), we have used a fast-follower approach to identify a novel series of HCV NS3/4A protease inhibitors in which (i) the P3 amino moiety and its capping group have been truncated, (ii) a sulfonamide is introduced in the P1 cyclopropyl amino acid, (iii) the position 8 of the quinoline is substituted with a methyl or halo group, and (iv) the ring size of the macrocycle has been reduced to 14 atoms. SAR analysis performed with a limited set of compounds led to the identification of N-{17-[8-chloro-2-(4-isopropylthiazol-2-yl)-7-methoxyquinolin-4-yloxy]-2,14-dioxo-3,15-diazatricyclo [13.3.0.0 [Bartenschlager, R.; Lohmann, V. J. Gen. Virol. 2000, 81, 1631; Vincent Soriano, Antonio Madejon, Eugenia Vispo, Pablo Labarga, Javier Garcia-Samaniego, Luz Martin-Carbonero, Julie Sheldon, Marcelle Bottecchia, Paula Tuma, Pablo Barreiro Expert Opin. Emerg. Drugs, 2008, 13, 1-19]]octadec-7-ene-4-carbonyl}(1-methylcyclopropyl)(1-methylcyclopropyl)sulfonamide 19l an extremely potent (Ki = 0.20 nM, EC50 = 3.7 nM), selective, and orally bioavailable dipeptide NS3/4A protease inhibitor, which has features attractive for further preclinical development.
- Raboisson, Pierre,Lin, Tse-I,Kock, Herman de,Vendeville, Sandrine,Vreken, Wim Van de,McGowan, David,Tahri, Abdellah,Hu, Lili,Lenz, Oliver,Delouvroy, Frederic,Surleraux, Dominique,Wigerinck, Piet,Nilsson, Magnus,Rosenquist, Asa,Samuelsson, Bertil,Simmen, Kenneth
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scheme or table
p. 5095 - 5100
(2009/06/18)
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- MACROCYCLIC INHIBITORS OF HEPATITIS C VIRUS
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Inhibitors of HCV replication of formula (I) and the N-oxides, salts, and stereoisomers, wherein each dashed line represents an optional double bond; X is N, CH and where X bears a double bond it is C; R1 is -OR7, -NH-SO2R8; R2 is hydrogen, and where X is C or CH, R2 may also be C1-6alkyl; R3 is hydrogen, C1-6alkyl, C1-6alkoxyC1-6alkyl, C3-7cycloalkyl; R4 is aryl or Het; n is 3, 4, 5, or 6; R5 is halo, C1-6alkyl, hydroxy, C1-6alkoxy, phenyl, or Het; R6 is C1-6alkoxy, or dimethylamino; R7 is hydrogen; aryl; Het; C3-7cycloalkyl optionally substituted with C1-6alkyl; or C1-6alkyl optionally substituted with C3-7cycloalkyl, aryl or with Het; R8 is aryl; Het; C3-7cycloalkyl optionally substituted with C1-6alkyl; or C1-6alkyl optionally substituted with C3-7cycloalkyl, aryl or with Het; aryl is phenyl optionally substituted with one, two or three substituents; Het is a 5 or 6 membered saturated, partially unsaturated or completely unsaturated heterocyclic ring containing 1 to 4 heteroatoms selected from nitrogen, oxygen and sulfur, and being optionally substituted with one, two or three substituents ; pharmaceutical compositions containing compounds (I) and processes for preparing compounds (I). Bioavailable combinations of the inhibitors of HCV of formula (I) with ritonavir are also provided.
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Page/Page column 78
(2008/06/13)
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