COc1ccc(C(=O)NNC(=O)C(Cc2ccc(O)cc2)NC(=O)c2ccccc2NC(=O)c2ccc(OC)cc2)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?