Cc1ccc(CNC(=O)[C@H](C)N2C(=O)N3CCc4c([nH]c5ccccc45)[C@@]3(C)C2=O)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?