COc1cc(/C=C2\CCC(C)C3C2=NN(C(C)=O)C3c2cc(OC)c(OC)c(OC)c2)cc(OC)c1OC
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?