COC(=O)c1ccc(C(NC(=O)OCc2ccccc2)/C(C)=C/[C@@H](C)C(=O)NCc2ccc(OC)c(OC)c2)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?