9-[(E)-5,6,7-trideoxy-7-({[2,2-diphenyl-6-(trifluoroacetyl)-1,3-benzodioxol-4-yl]carbonyl}amino)-2,3-O-(1-methylethylidene)-β-D-ribo-hept-5-enofuranosyl]-9H-purin-6-amine

9-[(E)-7-{[(6-chloro-2,2-diphenyl-1,3-benzodioxol-4-yl)carbonyl]amino}-5,6,7-trideoxy-2,3-O-(1-methylethylidene)-β-D-ribo-hept-5-enofuranosyl]-9H-purin-6-amine

(2R,3S,4R,5R)-2-[(E)-3-aminoprop-1-enyl]-5-(6-amino-9H-purin-9-yl)tetrahydrofuran-3,4-diol

(2R,3S,4R,5R)-2-(3-aminopropyl)-5-(6-amino-9H-purin-9-yl)tetrahydrofuran-3,4-diol

9-{(E)-5,6,7-trideoxy-7-[({6-[(dimethylamino)carbonyl]-2,2-diphenyl-1,3-benzodioxol-4-yl}carbonyl)amino]-2,3-O-(1-methylethylidene)-β-D-ribo-hept-5-enofuranosyl}-9H-purin-6-amine