CC(=O)OC1CC[C@]2(C)C(CCC3C2CC[C@]2(C)C(C4=CC(=O)OC4)C(OC(C)=O)CC32O)C1
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?