CCOC(=O)CC(NC(=O)c1cccc2c1C(=O)N(Cc1cccnc1)C2)c1ccc(OCC)c(OC)c1
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?