[{"from": "human", "value": "Can you suggest some reagents that might have been used in the given chemical reaction? [C][O][C][=C][Branch1][C][F][C][=C][Branch1][C][F][C][=C][Ring1][Branch2][C][C][O]>>[O][C][C][C][=C][C][Branch1][C][F][=C][C][Branch1][C][F][=C][Ring1][Branch2][O]"}, {"from": "gpt", "value": "[Br][B][Branch1][C][Br][Br].[Cl][C][Cl].[O]"}]