CCOC(=O)c1c(C)[nH]c(C)c1S(=O)(=O)N(C)CC(=O)N1CCN(c2ccc(Cl)cc2)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?