[{"from": "human", "value": "Based on the given chemical reaction, suggest some possible reagents. [Br][Br].[N][#C][C][=C][C][=C][N][=C][Ring1][=Branch1][N]>>[N][#C][C][=C][C][Branch1][C][Br][=C][N][=C][Ring1][#Branch1][N]"}, {"from": "gpt", "value": "[O][=C][Branch1][C][O-1][O-1].[Na+1].[Na+1]"}]