CCOC(=O)c1ncnc(N)c1N    mol7290    0_1
CCOC(=O)c1nc[nH+]c(N)c1N    mol7290    1_1
CCOC(=O)c1ncnc(N)c1[NH3+]    mol7290    1_2
CCOC(=O)c1[nH+]cnc(N)c1N    mol7290    1_3
CCOC(=O)c1ncnc([NH3+])c1N    mol7290    1_4