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