C=C(C)C(=O)O[C@H]1C/C(CO)=C/CCC(=C)C(OC(C)=O)[C@H]2OC(=O)C(=C)[C@H]12
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?