[EN] 2',3'-DIDEOXY-2'-α-FLUORO-2'-&bgr;-C-METHYLNUCLEOSIDES AND PRODRUGS THEREOF [FR] 2',3'-DIDÉSOXY-2'-A-FLUORO-2'-SS-C-MÉTHYLNUCLÉOSIDES ET LEURS PROMÉDICAMENTS
[EN] 2',3'-DIDEOXY-2'-α-FLUORO-2'-&bgr;-C-METHYLNUCLEOSIDES AND PRODRUGS THEREOF [FR] 2',3'-DIDÉSOXY-2'-A-FLUORO-2'-SS-C-MÉTHYLNUCLÉOSIDES ET LEURS PROMÉDICAMENTS