TETRACYCLIC XANTHENE DERIVATIVES AND METHODS OF USE THEREOF FOR THE TREATMENT OF VIRAL DISEASES
申请人:Coburn Craig A.
公开号:US20140199264A1
公开(公告)日:2014-07-17
The present invention relates to novel Tetracyclic Xanthene Derivatives of Formula (I) and pharmaceutically acceptable salts thereof, wherein A, Y
1
, Y
2
, Z, R
a
, R
b
, R
1a
, R
1b
and R
2
are as defined herein. The present invention also relates to 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.