CO/N=C(\C(=O)N[C@@H]1C(=O)N2C(C(=O)O)=C(Cn3nnc(C)n3)CS[C@H]12)c1csc(N)n1 represents a molecule that is not identified as penetrating the blood brain barrier.
{SMILES#} represents a molecule that is {penetrate_BBB#not &NULL}identified as {penetrate_BBB__names__adjective}.