abstract |
A class of macrocyclic compounds offormula (I), wherein R1, R3, R4, Ra, Rb, A, Z, Y, X, M, W,n and m are defined herein, that are useful as inhibitors of viral proteases, particularly the hepatitis C virus (HCV) NS3 protease, are provided. Also provided are processes 5 for the synthesis and use ofsuch macrocyclic compounds for treating or preventing HCV infection. Formula (I): |