(2R,3R,4R,5R)-2-(6-Chloro-9H-purin-9-yl)-5-(hydroxymethyl)-3-methyltetrahydrofuran-3,4-diol
(2R,3S,5R)-2-(Hydroxymethyl)-5-(6-(methylamino)-9H-purin-9-yl)tetrahydrofuran-3-ol
(2R,3R,4S,5S)-4-Amino-2-(6-(dimethylamino)-9H-purin-9-yl)-5-(hydroxymethyl)tetrahydrofuran-3-ol
