HETEROCYCLE-SUBSTITUTED TETRACYCLIC COMPOUNDS AND METHODS OF USE THEREOF FOR THE TREATMENT OF VIRAL DISEASES
申请人:MERCK SHARP & DOHME CORP.
公开号:US20150335648A1
公开(公告)日:2015-11-26
The present invention relates to novel Heterocycle-Substituted Tetracyclic Compounds of Formula (I): (I) and pharmaceutically acceptable salts thereof, wherein A, A′, R
2
R
3
, R
4
and R are as defined herein. The present invention also relates to compositions comprising at least one Heterocycle-Substituted Tetracyclic Compound, and methods of using the Heterocycle-Substituted Tetracyclic Compounds for treating or preventing HCV infection in a patient.