O=C(NCC1CCCO1)C(c1ccccn1)N(Cc1ccccc1Cl)C(=O)CN1C(=O)c2ccccc2S1(=O)=O
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?