Try searching for...
SCFBio, IIT Delhi
Formula: C10H12N4O5 | Mol. Weight: 268.23 g/mol
IUPAC: 9-[(3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-3H-purin-2-one
C1=NC(=O)NC2=C1N=CN2C3C(C(C(O3)CO)O)O