[EN] TETRACYCLIC XANTHENE DERIVATIVES AND METHODS OF USE THEREOF FOR TREATMENT OF VIRAL DISEASES<br/>[FR] DÉRIVÉS TÉTRACYCLIQUES DE XANTHÈNE ET LEURS PROCÉDÉS D'UTILISATION POUR LE TRAITEMENT DE MALADIES VIRALES
申请人:MERCK SHARP & DOHME
公开号:WO2012122716A1
公开(公告)日:2012-09-20
The present invention discloses tetracyclic xanthene derivatives of Formula (I) and pharmaceutically acceptable salts thereof, wherein A, Y1, Y2, Z, Ra, Rb, R1a, R1b, and R2 are as defined herein. The present invention also discloses compositions comprising at least one tetracyclic xanthene derivative, and methods of using the tetracyclic xanthene derivatives for treating or preventing HCV infection in a patient.
本发明公开了式(I)的四环黄酮衍生物及其药用盐,其中A、Y1、Y2、Z、Ra、Rb、R1a、R1b和R2如本文所定义。本发明还公开了包含至少一种四环黄酮衍生物的组合物,以及利用四环黄酮衍生物治疗或预防患者HCV感染的方法。