CC(C)[C@@]1(NC(=O)[C@@H]2C[C@H]3c4cccc5[nH]cc(c45)C[C@@H]3N(C)C2)O[C@]2(O)[C@H]3CCCN3C(=O)CN2C1=O.CS(=O)(=O)O
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?