CCN1C(=O)[C@H]2[C@@H](C1=O)[C@H]1CN=C(SCc3ccc(C)cc3)N1[C@@]2(CC)C(=O)OC.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.