O=C(O)C1CNC1    mol29297    0_1
O=C([O-])C1C[NH2+]C1    mol29297    0_2
OC(=[OH+])C1CNC1    mol29297    1_1
O=C(O)C1C[NH2+]C1    mol29297    1_2
O=C([O-])C1CNC1    mol29297    -1_1