SAR studies on a series of N-benzyl-4-heteroaryl-1-(phenylsulfonyl)piperazine-2-carboxamides: Potent inhibitors of the polymerase enzyme (NS5B) of the hepatitis C virus
作者:Robert G. Gentles、Min Ding、Xiaofan Zheng、Louis Chupak、Michael A. Poss、Brett R. Beno、Lenore Pelosi、Mengping Liu、Julie Lemm、Ying-Kai Wang、Susan Roberts、Min Gao、John Kadow
DOI:10.1016/j.bmcl.2011.03.008
日期:2011.5
Described herein is the initial optimization of (+/-) N-benzyl-4-heteroaryl-1-(phenylsulfonyl)piperazine-2-carboxamide (1), a hit discovered in a high throughput screen run against the NS5B polymerase enzyme of the hepatitis C virus. This effort resulted in the identification of (S)-N-sec-butyl-6-((R)-3-(4-(trifluoromethoxy) benzylcarbamoyl)-4-(4-(trifluoromethoxy) phenylsulfonyl)piperazin-1-yl)pyridazine-3-carboxamide (2), that displayed potent replicon activities against HCV genotypes 1b and 1a (EC50 1b/1a = 7/89 nM). (C) 2011 Elsevier Ltd. All rights reserved.