COC(=O)[C@@H]1C[C@@H]2CC[C@@H](O)C[C@@H]2N1Cc1ccccc1OS(=O)(=O)c1ccc(C)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?