COc1cccc(-c2ccc3c4c2O[C@H]2c5[nH]c6ccccc6c5C[C@@]5(O)[C@@H](C3)N(CC3CC3)CC[C@]425)c1.Cl
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?