摘要:
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 [13.3.0.0(4,6)]octadec-7-ene-4-carbonyl](cyclopropyl) sulfonamide (TMC435350, 32c) as a potent inhibitor of HCV NS3/4A protease (K-i = 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. (C) 2008 Elsevier Ltd. All rights reserved.