CCOC(=O)N1CCN(S(=O)(=O)N2CCCC(C(=O)NCCc3ccc(OCC)c(OCC)c3)C2)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?