O=C([O-])[C@@H]1CC[C@@H](C(=O)O)NC1    mol36321    -1_1
O=C(O)[C@@H]1CC[C@@H](C(=O)[O-])NC1    mol36321    -1_2
O=C([O-])[C@@H]1CC[C@@H](C(=O)[O-])[NH2+]C1    mol36321    -1_3
O=C([O-])[C@@H]1CC[C@@H](C(=O)[O-])NC1    mol36321    -2_1