CCOc1ccc(C(=O)N[C@H](C(=O)Nc2ccc(OC)c(S(=O)(=O)N3CCOCC3)c2)C(C)C)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?