User: Is the molecule with the SMILES Cn1cnc2c1c(=O)[nH]c(=O)n2C metabolized by CYP2D6?
Assistant: No, it is not a substrate for CYP2D6.
User: Is the molecule with the {SMILES__description} {SMILES#} {CYP2D6_Substrate__names__verb}?
Assistant: {CYP2D6_Substrate#No&Yes}, it is {CYP2D6_Substrate#not &NULL}a {CYP2D6_Substrate__names__noun}.
3,7-dimethylpurine-2,6-dione