CC(C)=CC[C@@H]1C(=O)C(C(=O)CC(C)C)=C(O)[C@H]1O    mol15568    0_1
CC(C)=CC[C@@H]1C(=O)C(C(=O)CC(C)C)=C([O-])[C@H]1O    mol15568    -1_1