CC(=O)OC1CC[C@]2(C)C(CC[C@@]3(C)C2C(=O)C=C2C4C(C)C(C)CC[C@@]4(C(=O)O)CCC23C)C1(C)C
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?