O=C(O)[C@@H]1[C@@H]2CC[C@@H](C2)[C@@H]1CO    mol36957    0_1
O=C(O)[C@@H]1[C@@H]2CC[C@@H](C2)[C@@H]1C[O-]    mol36957    -1_1
O=C([O-])[C@@H]1[C@@H]2CC[C@@H](C2)[C@@H]1CO    mol36957    -1_2