CC(C)NC(=O)N(C)C[C@@H]1Oc2ccc(NC(=O)CCN3CCOCC3)cc2CC(=O)N([C@@H](C)CO)C[C@@H]1C
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?