The molecule with the SMILES Nc1nc(=O)c(Br)c(-c2ccccc2)[nH]1 is not a substrate for CYP P450 3A4.
The molecule with the {SMILES__description} {#representation of |!}{SMILES#} is {CYP3A4_Substrate#not &NULL}a {CYP3A4_Substrate__names__noun}.