PROCESS FOR PREPARING BRANCHED RIBONUCLEOSIDES FROM 1, 2-ANHYDRORIBOFURANOSE INTERMEDIATES
A process is provided for the preparation of branched-chain ribonucleosides of formula (I) from the 1,2- anhydro derivatives of fomula (II). The compounds of fomula (I) are inhibitors of HCV polymerase useful in the treatment of HCV infection.