CC(C)c1ccc(Nc2nnc(SCC(=O)Nc3ncc(S(=O)(=O)c4ccc([N+](=O)[O-])cc4)s3)s2)cc1
Molecules with a polar surface area of greater than 60 angstroms squared (Å2) is hard to pass brain blood barrier. What's the psa of this molecule?