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

9-[(E)-7-{[(6-bromo-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

9-[(E)-5,6,7-trideoxy-7-({[2,2-diphenyl-6-(1,3-thiazole-2-yl)-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-({[2,2-bis(4-methoxyphenyl)-6-cyano-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

9-[(E)-7-({[6-(1,3-benzodthiazol-2-yl)-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