CN(C)c1ccnc(N(C)C)n1    mol7139    0_1
CN(C)c1ccnc(N(C)C)[nH+]1    mol7139    1_1
CN(C)c1ccnc([NH+](C)C)n1    mol7139    1_2
CN(C)c1cc[nH+]c(N(C)C)n1    mol7139    1_3
CN(C)c1nccc([NH+](C)C)n1    mol7139    1_4