[{"from": "human", "value": "Given the following chemical reaction, what are some potential reagents that could have been employed? [Br][Br].[C][C][=C][C][=C][C][=C][C][=C][Ring1][=Branch1][C][=N][Ring1][#Branch2]>>[C][C][=N][C][=C][C][=C][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2][Br]"}, {"from": "gpt", "value": "[Br].[Cl][C][Cl].[Na+1].[OH1-1]"}]