Antiviral nucleoside derivatives

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Carbohydrate doai

Reexamination Certificate

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C514S934000, C514S894000, C536S028510, C536S028500, C536S055300

Reexamination Certificate

active

06846810

ABSTRACT:
The present invention relates to nucleoside derivatives for the treatment of Hepatitis C viral infections including compounds of formula I, pharmaceutical compositions comprising these compounds and methods for treatment or prophylaxis of Hepatitis C Virus mediated diseases employing said compounds in monotherapy or in combination therapy. The present invention further provides a process for preparing 1′,3′,4′-triacyl pyrimidine nucleoside from a N, 1′,3′,4′-tetraacylpyrimidine nucleoside

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