Toward Second Generation Hepatitis C Virus NS3 Serine Protease Inhibitors: Discovery of Novel P4 Modified Analogues with Improved Potency and Pharmacokinetic Profile
摘要:
Hepatitis C virus (HCV) infection is a global health crisis leading to liver cirrhosis, hepatocellular carcinoma, and liver failure in humans. Recently, we disclosed the discovery of Boceprevir, SCH 503034 (1), a novel, potent, selective, orally bioavailable NS3 protease inhibitor that is currently undergoing phase III clinical trials. Our efforts toward a second generation HCV NS3 serine protease inhibitor were directed at improving the overall profile of the inhibitor. This article will elaborate on our studies leading to the discovery of new P4 modified inhibitors with enhanced potency and improved oral bioavailability. Thus, introduction of ether and carbamate-derived P4 moieties resulted in improving the replicon potency significantly. Incorporation of the P' secondary amide residue afforded significant improvement in pharmacokinetic properties. Combining the preferred moieties, identified from comprehensive SAR studies, resulted in inhibitors that displayed superior potency and very good oral as well as target organ exposure in rats.
[EN] NOVEL COMPOUNDS AS INHIBITORS OF HEPATITIS C VIRUS NS3 SERINE PROTEASE [FR] NOUVEAUX COMPOSES EN TANT QU'INHIBITEURS DE LA SERINE PROTEASE NS3 DU VIRUS DE L'HEPATITE C
Novel compounds as inhibitors of hepatitis C virus NS3 serine protease
申请人:Arasappan Ashok
公开号:US20070142300A1
公开(公告)日:2007-06-21
The present invention discloses novel compounds which have HCV protease inhibitory activity as well as methods for preparing such compounds. In another embodiment, the invention discloses pharmaceutical compositions comprising such compounds as well as methods of using them to treat disorders associated with the HCV protease.