COC1=C(C(=O)O)N2C(=O)C(NC(=O)C(N)C3C=CCC=C3)C2SC1 represents a molecule that is not identified as penetrating the blood brain barrier to reach the brain.
{SMILES#} represents a molecule that is {penetrate_BBB#not &NULL}identified as {penetrate_BBB__names__adjective}.