CN(C)c1ncc(Br)c(N)n1    mol7002    0_1
CN(C)c1ncc(Br)c(N)[nH+]1    mol7002    1_1
C[NH+](C)c1ncc(Br)c(N)n1    mol7002    1_2
CN(C)c1nc(N)c(Br)c[nH+]1    mol7002    1_3
CN(C)c1ncc(Br)c([NH3+])n1    mol7002    1_4