The molecule with the SMILES representation of Cn1cnc2c1c(=O)[nH]c(=O)n2C is not a substrate for CYP2D6.
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {CYP2D6_Substrate#not &NULL}a {CYP2D6_Substrate__names__noun}.
3,7-dimethylpurine-2,6-dione