O=C(O)CO[C@@]12C#C/C=C\C#C[C@@H]3N(C(=O)Oc4ccccc4)c4ccccc4[C@]14O[C@@]34CCC2
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?