CCOC(=O)C1CCCN(C(=O)c2ccc(C/N=c3\c(N4CCC(C)CC4)c(O)c3=O)cc2)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?