O=C([O-])[C@H]1[NH2+]CCC[C@H]1C(=O)[O-]    mol36319    -1_1
O=C([O-])[C@H]1NCCC[C@H]1C(=O)O    mol36319    -1_2
O=C(O)[C@H]1NCCC[C@H]1C(=O)[O-]    mol36319    -1_3
O=C([O-])[C@H]1NCCC[C@H]1C(=O)[O-]    mol36319    -2_1