Cc1ccc(CNC(=O)[C@H](C)NC(=O)C2CCN(C(=O)[C@@H]3CCCN3C(=O)OC(C)(C)C)CC2)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?