c1nc(c2c(n1)n(cn2)[C@@H]3C[C@H](C(=O)[C@H]3O)CO)N NOC_434_1LI4 (2S,3R,5S)-3-(6-aminopurin-9-yl)-2-hydroxy-5-(hydroxymethyl)cyclopentanone c1nc(c2c(n1)n(cn2)[C@@H]3C[C@@H](C(=O)[C@H]3O)CO)N NOC_434_1LI4 (2S,3R,5R)-3-(6-aminopurin-9-yl)-2-hydroxy-5-(hydroxymethyl)cyclopentanone