COc1ccc(O[C@H]2C=C[C@@H](c3ccccc3)O[C@@H]2CO/N=C\[C@@H](C)[C@H](OCc2ccccc2)C(C)C)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?