CC(C)[C@@H]1CC[C@@H](C)C[C@H]1OC(=O)c1c2n(c3ccccc13)C[C@H]1OC(C)(C)O[C@@H]21
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?