A process for preparing phosphoramidate prodrugs or cyclic phosphate prodrugs of nucleoside derivatives, which is a compound, its stereoisomers, salts (acid or basic addition salts), hydrates, solvates, or crystalline forms thereof.Linvention concerne un procédé de synthèse de promédicaments de type phosphoramidate ou phosphate cyclique de dérivés de nucléosides, ainsi que composé, ses stéréoisomères, sels daddition acide ou basique, hydrates, solvates ou formes cristallines.
