Compounds of Formula (I)
wherein R
1
, R
2
, R
3
, R
4
and R
5
are defined herein, maintain good activity against NS3 proteases containing clinically relevant genotype 1a R155K and genotype 1b D168V resistance mutations. The compounds are useful as inhibitors of HCV NS3 protease for the treatment of hepatitis C viral infection.
[EN] HEPATITIS C INHIBITOR COMPOUNDS<br/>[FR] COMPOSÉS INHIBITEURS DE L'HÉPATITE C
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2011063502A1
公开(公告)日:2011-06-03
Compounds of Formula (I) wherein R1, R2, R3, R4 and R5 are defined herein, maintain good activity against NS3 proteases containing clinically relevant genotype 1 a R155K and genotype 1 b D168V resistance mutations. The compounds are useful as inhibitors of HCV NS3 protease for the treatment of hepatitis C viral infection.
Discovery of Hepatitis C Virus NS3-4A Protease Inhibitors with Improved Barrier to Resistance and Favorable Liver Distribution
作者:Benoît Moreau、Jeff A. O’Meara、Josée Bordeleau、Michel Garneau、Cedrickx Godbout、Vida Gorys、Mélissa Leblanc、Elisia Villemure、Peter W. White、Montse Llinàs-Brunet
DOI:10.1021/jm400121t
日期:2014.3.13
Given the emergence of resistance observed for the current clinical-stage hepatitis C virus (HCV) NS3 protease inhibitors, there is a need for new inhibitors with a higher barrier to resistance. We recently reported our rational approach to the discovery of macrocyclic acylsulfonamides as HCV protease inhibitors addressing potency against clinically relevant resistant variants. Using X-ray crystallography of HCV protease variant/inhibitor complexes, we shed light on the complex structural mechanisms by which the D168V and R155K residue mutations confer resistance to NS3 protease inhibitors. Here, we disclose SAR investigation and ADME/PK optimization leading to the identification of inhibitors with significantly Unproved potency against the key resistant variants and with increased liver partitioning.