C=CC[C@@H](CC(=O)N(CCO)Cc1ccccc1)C(=O)N[C@@H](C)COC(=O)[C@@H](CC=C)Cc1ccc(F)cc1
Molecules with a polar surface area of greater than 140 angstroms squared (Å2) tend to be poor at permeating cell membranes. What's the psa of this molecule?