COc1ccc(S(=O)(=O)N2CCOCC2)cc1NC(=O)c1cccc2c(=O)c(C)c(-c3ccccc3)oc12
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?