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