[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [C][O][C][=C][C][=C][Branch1][Ring1][C][=O][C][=C][Ring1][Branch2].[I][I]>>[C][O][C][=C][C][=C][Branch1][Ring1][C][=O][C][=C][Ring1][Branch2][I]"}, {"from": "gpt", "value": "[Cl][C][Cl].[O][=C][Branch1][C][O-1][C][Branch1][C][F][Branch1][C][F][F].[Ag+1]"}]