User: I'm searching for the SMILES of a molecule that is penetrating the blood brain barrier?
Assistant: This is a molecule that is penetrating the blood brain barrier: O=C1CN=C(c2ccccn2)c2cc(Br)ccc2N1
User: I'm {#searching|looking!} for the {SMILES__description} of a molecule that is {penetrate_BBB#not &NULL}{penetrate_BBB__names__adjective}?
Assistant: This is a molecule that is {penetrate_BBB#not &NULL}{penetrate_BBB__names__adjective}: {SMILES#}