COc1ccc(C2Nc3ccc(NC(=O)CO)cc3C(=O)N2Cc2cccc(Cl)c2)cc1COc1ccc(NC(C)=O)cc1
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?