CCN(CC)C(=O)[C@H]1C[C@H](CC(=O)NC(C)(C)C)C(=O)N2CCc3c([nH]c4ccc(Cl)cc34)[C@]12C
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?