O=C(O)[C@@H]1CCNC[C@H]1O    mol19444    0_1
O=C([O-])[C@@H]1CC[NH2+]C[C@H]1O    mol19444    0_2
O=C(O)[C@@H]1CC[NH2+]C[C@H]1O    mol19444    1_1
O=C([O-])[C@@H]1CCNC[C@H]1O    mol19444    -1_1