COC(=O)[C@@]12CCCCN1[C@H](c1ccc(-c3cccc(Cl)c3)cc1)[C@H]1C(=O)N(C)C(=O)[C@H]12.O=C(O)C(F)(F)F
PSA is a commonly used medicinal chemistry metric for the optimization of a drug's ability to permeate cells. Please predict psa of this molecule.