| 摘要 |
Compounds of formula I: wherein: R2 is hydrogen or C1-C4alkyl; R3 and R4 are hydrogen, -C(=O)R5, or -C(=O)CHR6-NH2; or R3 is hydrogen and R4 is a monophosphate-, diphosphate-, or triphosphate ester; or R3 is hydrogen, -C(=O)CHR5, or -C(=O)CHR6-NH2 and R4 is (formula 2) each R5 is hydrogen, C1-C6alkyl, or C3-C7cycloalkyl; R6 is hydrogen or C1-C6alkyl; R7 is optionally substituted phenyl; naphthyl; or indolyl; R8 and R8 are hydrogen, C3-C7alkyl, benzyl; or R8 and R8 combined form C3-C7cycloalkyl; R9 is C1-C6alkyl, benzyl, or optionally substituted phenyl; provided that R2, R3 and R4 are not all hydrogen; or a pharmaceutically acceptable salt or solvate thereof; pharmaceutical formulations with the compounds I; the use of compounds I, including the compounds of formula I wherein R2, R3 and R4 are all hydrogen, as HCV inhibitors.
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