CN[C@H]1C[C@H]2c3[nH]c4ccc(-c5ccc(OC)cc5)cc4c3CCN2C(=O)[C@H]1[C@H](C)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?