O=Cc1ncnc2nc[nH]c12    mol4880    0_1
O=Cc1ncnc2[nH+]c[nH]c12    mol4880    1_1
O=Cc1nc[nH+]c2nc[nH]c12    mol4880    1_2
O=Cc1[nH+]cnc2nc[nH]c12    mol4880    1_3
O=Cc1ncnc2nc[n-]c12    mol4880    -1_1