Provided herein is a compound of structure (I) or (Ia), or a stereoisomer, a tautomer, an N-oxide, a hydrate, a solvate, a metabolite, a pharmaceutically acceptable salt or a prodrug thereof. Furthermore provided herein are pharmaceutical compositions containing the compound of structure (I) or (Ia) and use of the compounds or pharmaceutical compositions thereof in the treatment of HCV infection.
                            本文提供了结构(I)或(Ia)的化合物,或其立体异构体、互变异构体、N-氧化物、
水合物、溶剂合物、代谢物、药学上可接受的盐或其前药。此外,本文还提供了含有结构(I)或(Ia)的化合物的药物组合物,以及利用这些化合物或药物组合物治疗HCV感染。