O=C(COc1ccc(OCC(=O)N2C(=O)CC/C2=N\c2ccc(Cl)cc2)cc1)N1C(=O)CS/C1=N\c1ccc(Cl)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?