1400276-62-1Relevant articles and documents
TETRACYCLIC XANTHENE DERIVATIVES AND METHODS OF USE THEREOF FOR TREATMENT OF VIRAL DISEASES
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Page/Page column 102-103, (2012/10/07)
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.