Highly potent non-peptidic inhibitors of the HCV NS3/NS4A serine protease
摘要:
Screening of a diverse set of bisbenzimidazoles for inhibition of the hepatitis C virus (HCV) serine protease NS3/NS4A led to the identification of a potent Zn2+-dependent inhibitor (1). Optimization of this screening hit afforded a 10-fold more potent inhibitor (46) under Zn2+ conditions (K-i = 27 nM). This compound (46) binds also to NS3/NS4A in a Zn2+ independent fashion (K-i = 1 muM). The SAR of this class of compounds under Zn2+ conditions is highly divergent compared to the SAR in the absence of Zn2+, suggesting two distinct binding modes. (C) 2002 Elsevier Science Ltd. All rights reserved.
Highly potent non-peptidic inhibitors of the HCV NS3/NS4A serine protease
摘要:
Screening of a diverse set of bisbenzimidazoles for inhibition of the hepatitis C virus (HCV) serine protease NS3/NS4A led to the identification of a potent Zn2+-dependent inhibitor (1). Optimization of this screening hit afforded a 10-fold more potent inhibitor (46) under Zn2+ conditions (K-i = 27 nM). This compound (46) binds also to NS3/NS4A in a Zn2+ independent fashion (K-i = 1 muM). The SAR of this class of compounds under Zn2+ conditions is highly divergent compared to the SAR in the absence of Zn2+, suggesting two distinct binding modes. (C) 2002 Elsevier Science Ltd. All rights reserved.