(3aS,4S,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carboxylic acid phenylamide
{[(3aS,4S,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carbonyl]-amino}-acetic acid ethyl ester
2-{[(3aS,4S,6R,6aR)-6-(6-Amino-purin-9-yl)-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxole-4-carbonyl]-amino}-benzoic acid ethyl ester
1-(6-amino-purin-9-yl)-O2,O3-isopropylidene-β-D-1-deoxy-ribofuranuronic acid allylamide
5'-N-methyl-2',3'-O-isopropylidenecarboxamidoadenosine