[{"from": "human", "value": "Can you provide potential reagents for the following chemical reaction? [C][O][C][=C][C][=C][NH1][C][=C][C][Ring1][Branch1][=C][Ring1][=Branch2][Br]>>[O][C][=C][C][=C][NH1][C][=C][C][Ring1][Branch1][=C][Ring1][=Branch2][Br]"}, {"from": "gpt", "value": "[Br][B][Branch1][C][Br][Br].[Cl][C][Cl]"}]