(-)-Enantiomer cis-4-amino-1-(2-hydroxymethyl -1,3-oxathiolan-5-yl)-(1H)-pyrimidin-2-one or its salt , or its ester, or its ester's salt, mixture of (-)-enantiomer and (ª)-enantiomer, process for preparation thereof, antiviral composition and method of mammals treatment, including humans suffering from viral infections or sensitive to these ones

摘要

(-)-Enantiomer cis-4-amino-1-(2-hydroxymethyl-1,3-oxathiolan-5-yl)-(1H)-pyrimidin-2-one, its pharmaceutically acceptable derivatives, pharmaceutical compositions on base thereof, processes for its preparation and its use as antiviral agents are described in the invention