COc1ccc(/C=C2\CCCC3C2=NN(C(=O)c2ccco2)C3c2ccc(OC)c(OC)c2)cc1OC
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?