CN(C)c1ncnc2c1ncc(=O)n2C    mol8169    0_1
CN(C)c1nc[nH+]c2c1ncc(=O)n2C    mol8169    1_1
Cn1c(=O)cnc2c([NH+](C)C)ncnc21    mol8169    1_2
CN(C)c1[nH+]cnc2c1ncc(=O)n2C    mol8169    1_3
CN(C)c1ncnc2c1[nH+]cc(=O)n2C    mol8169    1_4