Cc1cc(N(C)C)nc(C)n1    mol7399    0_1
Cc1cc([NH+](C)C)nc(C)n1    mol7399    1_1
Cc1cc(N(C)C)nc(C)[nH+]1    mol7399    1_2
Cc1cc(N(C)C)[nH+]c(C)n1    mol7399    1_3