CN[C@@H]1N=CC(Br)=CN1C    mol4111    0_1
CN[C@@H]1N=CC(Br)=C[NH+]1C    mol4111    1_1
CN[C@@H]1[NH+]=CC(Br)=CN1C    mol4111    1_2
C[NH2+][C@@H]1N=CC(Br)=CN1C    mol4111    1_3