Compounds having the formula I wherein R
1
, R
2
, R
3
, R
4
, and R
5
are as defined herein are Hepatitis C virus NS5b polymerase inhibitors. Also disclosed are compositions and methods for treating an HCV infection and inhibiting HCV replication.
Compounds having the formula I wherein R1, R2, R3, R4, and R5 are as defined herein are Hepatitis C virus NS5b polymerase inhibitors. Also disclosed are compositions and methods for treating an HCV infection and inhibiting HCV replication.