CCOC(=O)[C@]12Cc3c(cc(OC)c(OC)c3OC)[C@H]1N(Cc1ccccc1)C(=O)c1ccccc12
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?