User: I'm searching for the SMILES of a molecule that is penetrating the blood brain barrier to reach the brain?
Assistant: This is a molecule that is penetrating the blood brain barrier to reach the brain: CCC(=O)N1CCN(C(=O)OC2C3=C(SCCS3)C(=O)N2c2ccc3ccc(Cl)nc3n2)CC1
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#}