COc1ccc(C(CC(=O)N2CCOCC2)c2c(OC)cc(OC)c3c(-c4ccccc4)cc(=O)oc23)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?