The SMILES Cn1c(=O)[nH]c2ncn(C)c2c1=O represents a molecule that is not identified as a CYP3A4 substrate.
The {SMILES__description} {SMILES#} {#represents|is from!} a molecule that is {CYP3A4_Substrate#not &NULL}identified as a {CYP3A4_Substrate__names__noun}.
1,7-dimethyl-3H-purine-2,6-dione