摘要 |
An isomer, enantiomer, diastereoisomer or tautomer of a compound, represented by formula I: wherein wherein A, B, R<SUP>2</SUP>, R<SUP>3</SUP>, M<SUP>1</SUP>, M<SUP>2</SUP>, M<SUP>3</SUP>, M<SUP>4</SUP>, Y<SUP>1 </SUP>and Z are as defined in claim 1 , or a salt thereof, as an inhibitor of HCV NS5B polymerase.
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