COc1ccc(S(=O)(=O)N(C)C[C@H]2Oc3cc(Br)ccc3S(=O)(=O)N([C@H](C)CO)C[C@H]2C)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?