C=CCN1C(=O)c2ccc(C(=O)N(CCOC)c3c(N)n(CCCC)c(=O)[nH]c3=O)cc2C1=O
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?