Non-nucleoside inhibitors of HCV polymerase NS5B. Part 3: Synthesis and optimization studies of benzothiazine-substituted tetramic acids
摘要:
Benzothiazine-substituted tetramic acids were discovered as highly potent non-nucleoside inhibitors of HCV NS5B polymerase. X-ray crystallography studies confirmed the binding mode of these inhibitors with HCV NS5B polymerase. Rational optimization of time dependent inactivation of CYP 3A4 and clearance was accomplished by incorporation of electron-withdrawing groups to the benzothiazine core. (C) 2009 Elsevier Ltd. All rights reserved.
Compounds having the formula I wherein A, m and R
1
are herein defined are Hepatitis C virus polymerase inhibitors. Also disclosed are compositions and methods for treating diseases mediated by HCV and for inhibiting hepatitis replication. Also disclosed are processes for making the compounds and synthetic intermediates used in the process
Compounds having the formula I wherein A, m and R1 are herein defined are Hepatitis C virus polymerase inhibitors. Also disclosed are compositions and methods for treating diseases mediated by HCV and for inhibiting hepatitis replication. Also disclosed are processes for making the compounds and synthetic intermediates used in the process (I).