Antiviral nucleoside derivatives

A - Human Necessities – 61 – K

Patent

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Details

A61K 31/708 (2006.01) A61K 31/7064 (2006.01) A61K 31/7068 (2006.01) A61K 31/7076 (2006.01) A61P 31/14 (2006.01)

Patent

CA 2445744

The present invention relates to nucleoside derivatives for use in the treatment or prophylaxis of hepatitis C virus infections. In particular, the present invention relates to known 2'-deoxy-2'-fluoro nucleoside derivatives and their use as inhibitors of hepatitis C virus (HCV) RNA replication and pharmaceutical compositions of such compounds. The compounds of this invention have potential use as therapeutic agents for the treatment of HCV infections. The present invention describes the use of 2'-deoxy-2'-fluoro nucleoside derivatives of formula I wherein R1 is hydrogen or phosphate and B signifies a 1-pyrimidinyl or 9-purinyl residue of formulae B1, B2, B3 and of pharmaceutically acceptable salts thereof for the treatment of diseases mediated by the hepatitis C virus (HCV) or for the preparation of medicaments for such treatment.

L'invention concerne des dérivés de nucléoside à utiliser dans le traitement ou la prophylaxie d'infections liées au virus de l'hépatite C. En particulier, l'invention concerne des dérivés connus de 2'-déoxy-2'-fluoro nucléoside, et leur utilisation en tant qu'inhibiteurs de réplication de l'ARN du virus de l'hépatite C (HCV), et des compositions pharmaceutiques de tels composés. Ces composés présentent une utilisation potentielle en tant qu'agents thérapeutiques dans le traitement d'infections HCV. L'invention décrit l'utilisation de dérivés de 2'-déoxy-2'-fluoro nucléoside de formule (I), où R?1¿ est hydrogène ou phosphate et, B représente un résidu 1-pyrimidinyle ou 9-purinyle de formule B1, B2, ou B3 et des sels pharmaceutiquement acceptables de ce résidu, pour le traitement de maladies provoquées par le virus de l'hépatite C (HCV), ou pour la préparation de médicaments destinés à un tel traitement.

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