CC(C)(C)OC(=O)NC(Cc1ccc(OCc2ccccc2)cc1)C(=O)NC(COCc1ccccc1)C(=O)Oc1c(Cl)c(Cl)c(Cl)c(Cl)c1Cl
Molecules with a polar surface area of greater than 60 angstroms squared (Å2) is hard to pass brain blood barrier. What's the psa of this molecule?