9-[3′,5′-O-(1,1,3,3-tetraisopropyldisiloxyl)-2′-O-trifluormethylsulfonyl-β-D-arabinofuranosyl]adenine

2'-deoxy-2'-trifluoroacetamidoinosine

9-[2'-deoxy-2'-trifluoroacetamido-3',5'-O-(diacetyl)]-(1-β-D-ribofuranosyl)-6-chloropurine

2'-deoxy-2'-trifluoroacetamido-3',5'-O-(diacetyl)inosine

9-[3',5'-O-(1,1,3,3-tetraisopropyldisiloxane-1,3-diyl)-1-β-D-arabinofuranosyl]adenine