[{"from": "human", "value": "Please propose potential reagents that might have been utilized in the provided chemical reaction. [Br][Br].[C][C][Branch1][C][C][C][C][C][=Branch1][C][=O][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][N]>>[C][C][Branch1][C][C][C][C][C][=Branch1][C][=O][C][=C][C][Branch1][C][Br][=C][C][=C][Ring1][#Branch1][Ring1][=N]"}, {"from": "gpt", "value": "[Cl][C][Cl].[Al+3].[Cl-1].[Cl-1].[Cl-1]"}]