CNc1ncc(Br)c(C)n1    mol7171    0_1
CNc1ncc(Br)c(C)[nH+]1    mol7171    1_1
C[NH2+]c1ncc(Br)c(C)n1    mol7171    1_2
CNc1nc(C)c(Br)c[nH+]1    mol7171    1_3