Synthesis of [1-[3′,5′-Bis-O-(tert-butyldimethylsilyl)-β-d-arabino- and β-d-ribofuranosyl]cytosine]-2′-spiro-5″-(4″-amino-1″,2″-oxathiole-2″,2″-dioxide). Analogues of the highly specific anti-HIV-1 agent TSAO-T | Publicación