CC(C)N1CN([C@@H](C(=O)N[C@@H]2C(=O)N3C2SC(C)(C)C3C(=O)O)c2ccc(O)cc2)CSC1=S
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?