COc1cccc([C@H]2Oc3ccc(OC)cc3/C(=N\OCC[C@@H]3C=C[C@H](OC(C)=O)[C@H](COC(C)=O)O3)[C@@H]2O)c1
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?