C[C@@H](CO)N1C[C@@H](C)[C@@H](CN(C)Cc2ccc(Cl)c(Cl)c2)Oc2ccc(NC(=O)Nc3ccc(F)cc3)cc2CC1=O
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?