CCOC(=O)[C@@H]1[C@H]2COc3ccc(Br)cc3[C@H]2N2C(=O)N(c3ccc(C)cc3)C(=O)[C@]12C
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?