| 摘要 |
THE PRESENT INVENTION RELATES TO THE USE OF NUCLEOSIDE DERIVATIVES OF FORMULA I , WHEREIN B SIGNIFIES A 9-PURINYL RESIDUE B1 OF FORMULA , OR A 1-PYRIMIDYL RESIDUE B2 OF FORMULA , WHEREIN THE SYMBOLS ARE AS DEFINED IN THE SPECIFICATION, AND OF PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF; FOR THE TREATMENT OF DISEASES MEDIATED BY THE HEPATITIS C VIRUS (HCV), FOR THE PREPARATION OF A MEDICAMENT FOR SUCH TREATMENT AND TO PHARMACEUTICAL COMPOSITIONS CONTAINING SUCH COMPOUNDS.
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