CCOC(=O)N1CCC(NC(=O)C[S+]([O-])Cc2nc(-c3ccc(OC)c(OC)c3)oc2C)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?