C[C@]12c3[nH]c4cc(-c5ccco5)ccc4c3CCN1C(=O)[C@@H](CC(=O)NCc1cccc(C(F)(F)F)c1)C[C@@H]2C(=O)N1CCOCC1
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?