[{"from": "human", "value": "Please provide possible reagents based on the following chemical reaction. [Br][Br].[C][O][C][=C][C][=C][C][=N][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2]>>[C][O][C][=C][C][=C][C][=N][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2][Br]"}, {"from": "gpt", "value": "[Cl][C][Cl].[O].[O][=C][Branch1][C][O-1][O-1].[Al+3].[Cl-1].[Cl-1].[Cl-1].[Na+1].[Na+1]"}]