SMILES: CN1C(=O)C2=C(N=C1N)N(C=N2)[C@H]3[C@@H]([C@@H]([C@H](O3)COP(=O)(O)O)O)O
Description: The molecule is a purine ribonucleoside 5'-monophosphate that is GMP bearing a methyl substituent at position 1. It derives from a guanosine 5'-monophosphate.