C[C@]12C(=O)N(c3cccc(Cl)c3)C(=O)N1[C@H]1c3ccccc3OC[C@@H]1[C@H]2c1ccccc1
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?