The present invention relates to a tetracyclic fused heterocyclic compound represented by the following formula [I]
wherein each symbol is as defined in the specification, or a pharmaceutically acceptable a salt thereof, and a hepatitis C virus (HCV) polymerase inhibitor and a therapeutic agent for hepatitis C containing this compound. The compound of the present invention shows an anti-HCV activity based on the HCV polymerase inhibitory activity, and useful as an agent for the prophylaxis or treatment of hepatitis C.
本发明涉及由下式[I]表示的四环融合
杂环化合物
其中各符号如说明书中所定义,或其药学上可接受的盐,以及含有该化合物的丙型肝炎病毒(HCV)聚合酶
抑制剂和丙型肝炎治疗剂。本发明的化合物具有基于 HCV 聚合酶抑制活性的抗 HCV 活性,可用作丙型肝炎的预防或治疗剂。