O=C([O-])C[n+]1ccn(CC(=O)O)c1    mol36311    0_1
O=C(O)[CH-][n+]1ccn(CC(=O)O)c1    mol36311    0_2
O=C([O-])Cn1cc[n+](CC(=O)O)c1    mol36311    0_3
O=C([O-])Cn1cc[n+](CC(=O)[O-])c1    mol36311    -1_1
O=C([O-])[CH-][n+]1ccn(CC(=O)O)c1    mol36311    -1_2
O=C(O)[CH-][n+]1ccn(CC(=O)[O-])c1    mol36311    -1_3