| abstract |
The present invention relates to the use of nucleoside derivatives of formula (I), and pharmaceutically acceptable salts thereof, for the treatment of diseases mediated by hepatitis C virus (HCV), for the manufacture of a medicament for the treatment, and to a medicament containing the compound. It relates to a pharmaceutical composition:n n n [Formula I]n n n n n n n n [Wherein B means 9-purinyl residue B1 of formula B1 or 1-pyrimidyl residue B2 of formula B2, wherein the symbols are as defined in the specification:n n n ]. |