COC(=O)c1ccccc1S(=O)(=O)N1CCc2nc(-c3ccc(OC)cc3C)c3c(c2C1)CO[C@@H](c1ccccc1)C3
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?