Discovery of SCH446211 (SCH6): A New Ketoamide Inhibitor of the HCV NS3 Serine Protease and HCV Subgenomic RNA Replication
作者:Stéphane L. Bogen、Ashok Arasappan、Frank Bennett、Kevin Chen、Edwin Jao、Yi-Tsung Liu、Raymond G. Lovey、Srikanth Venkatraman、Weidong Pan、Tajel Parekh、Russel E. Pike、Sumei Ruan、Rong Liu、Bahige Baroudy、Sony Agrawal、Robert Chase、Paul Ingravallo、John Pichardo、Andrew Prongay、Jean-Marc Brisson、Tony Y. Hsieh、Kuo-Chi Cheng、Scott J. Kemp、Odile E. Levy、Marguerita Lim-Wilby、Susan Y. Tamura、Anil K. Saksena、Viyyoor Girijavallabhan、F. George Njoroge
DOI:10.1021/jm060077j
日期:2006.5.1
Introduction of various modified prolines at P-2 and optimization of the P-1 side chain led to the discovery of SCH6 (24, Table 2), a potent ketoamide inhibitor of the HCV NS3 serine protease. In addition to excellent enzyme potency (K-i* = 3.8 nM), 24 was also found to be a potent inhibitor of HCV subgenomic RNA replication with IC50 and IC90 of 40 and 100 nM, respectively. Recently, antiviral activity of 24 was demonstrated with inhibition of the full-length genotype 2a HCV genome. In addition, 24 was found to restore the responsiveness of the interferon regulatory factor 3 (IRF-3) in cells containing HCV RNA replicons.