SMILES: C(C1C(=C(C2C(O1)NC3=C(N2)C(=O)NC(=N3)N)S)O)OP(=O)(O)O
Description: The molecule is an organic heterotricyclic compound consisting of a pyran ring fused to a pteridine ring system. It is an organic heterotricyclic compound, an organonitrogen heterocyclic compound and an oxacycle.