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