Cc1ccc(CN2CCC[C@]3(N[C@H](c4ccc(C)cc4)[C@@H]4C(=O)N(Cc5ccccc5)C(=O)[C@@H]43)C2=O)cc1.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.