C=CC[C@@H](CC(=O)N[C@H](CO)Cc1ccccc1)C(=O)N[C@H](COC(=O)[C@@H](CC=C)Cc1ccc(F)cc1)Cc1ccccc1
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.