Cc1ccc(C(=O)[C@@H]2[C@H]3[C@H]4CO[C@H](O4)C(=O)[C@H]3[C@@H]3C=Cc4ccccc4N23)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?