[{"from": "human", "value": "Can you suggest some reagents that might have been used in the given chemical reaction? [Br][Br].[C][C][=Branch1][C][=O][C][=C][C][=C][Branch1][=Branch1][C][Branch1][C][C][=O][C][=C][Ring1][=Branch2]>>[C][C][=Branch1][C][=O][C][=C][C][=C][Branch1][#Branch1][C][=Branch1][C][=O][C][Br][C][=C][Ring1][#Branch2]"}, {"from": "gpt", "value": "[C][C][O][C][C].[O].[Al+3].[Cl-1].[Cl-1].[Cl-1]"}]