CC(C)N(C(=O)[C@H]1C[C@H](CC(=O)NCCCn2ccnc2)C(=O)N2CCc3c([nH]c4ccc(Cl)cc34)[C@]12C)C(C)C
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?