C[C@H]1CN([C@@H](C)CO)C(=O)c2cccc(NC(=O)c3nc4ccccc4s3)c2O[C@H]1CN(C)C(=O)Nc1ccc(F)cc1
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.