| abstract |
Provided are fused tricyclic compounds effective to inhibit the function of the NS5A protein of formula (I), wherein X, X', Y, Y', A, A',Q 1 , Q 2 , R 1 -R 4 , X 4 , R 5a , f and W are defined as in the description. Also provided herein are pharmaceutical compositions thereof, and uses in the manufacture of a medicament for treating HCV infection or a HCV disorder thereof. |