CN(c1ncc(C(F)(F)F)cc1Cl)N1C(=O)C2ONC3(C(=O)CC(C)(C)CC3=O)C2C1=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?