C[C@@]12C(=O)Nc3cc(F)c(F)cc3C(=O)N1[C@H]1c3cc(Cl)ccc3OC[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?