CCOC(=O)C1CCN(C(=O)COC(=O)c2ccc3c(c2)C(=O)N(c2ccc(OCC)cc2)C3=O)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?