[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [Br][Br].[C][=C][C][=C][C][=N][C][=C][C][Ring1][=Branch1][=C][Ring1][#Branch2]>>[Br][C][=C][C][=C][C][=C][N][=C][C][=C][Ring1][#Branch2][Ring1][=Branch1]"}, {"from": "gpt", "value": "[O][=Al-1][=O].[Al+3].[Al].[Cl-1].[Cl-1].[Cl-1].[Na+1].[Na+1].[OH1-1]"}]