3',5'-cyclic nucleoside phosphate analogues

摘要

A compound or salt thereof having the following structure useful for the treatment of hepatitis C virus (HCV):
wherein R 7 is C 1-6 alkyl or C 3-6 cycloalkyl and R 8 is -O(C 1-6 alkyl) or -O(C 3-6 cycloalkyl).