C[C@H]1CCCCO[C@H](CN(C)S(=O)(=O)c2cccs2)[C@H](C)CN([C@@H](C)CO)C(=O)c2cc(N(C)C)ccc2O1
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?