User: I'm searching for the SMILES of a molecule that is not metabolized by CYP P450 3A4?
Assistant: This is a molecule that is not a substrate for CYP3A4: CN[C@@H](C)Cc1ccccc1
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that is {CYP3A4_Substrate#not &NULL}{CYP3A4_Substrate__names__verb}?
Assistant: This is a molecule that is {CYP3A4_Substrate#not &NULL}a {CYP3A4_Substrate__names__noun}: {SMILES#}