COc1ccccc1/C=C(\NC(=O)c1ccc(OC)c(OC)c1)C(=O)Nc1ccc([N+](=O)[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?