COc1ccc(Cl)cc1NC(=O)[C@H]1O[C@@H]2OC(C)(C)O[C@@H]2[C@H]2OC(C)(C)O[C@@H]12
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?