Cc1nnc(SCC2=C(C(=O)[O-])N3C(=O)[C@@H](NC(=O)Cn4cnnn4)[C@H]3SC2)s1.[Na+] is not penetrating the blood brain barrier to reach the brain.
{SMILES#} is {penetrate_BBB#not &NULL}{penetrate_BBB__names__adjective}.