COc1ccc(O[C@H]2C=C[C@@H](c3ccccc3)O[C@@H]2CO/N=C(\C)CCN2CCCc3nc(C)c(C)cc32)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?