COc1ncnc2nccnc12    mol4824    0_1
COc1ncnc2[nH+]ccnc12    mol4824    1_1
COc1[nH+]cnc2nccnc12    mol4824    1_2
COc1nc[nH+]c2nccnc12    mol4824    1_3
COc1ncnc2ncc[nH+]c12    mol4824    1_4