[{"from": "human", "value": "Can you provide potential reagents for the following chemical reaction? [I][I].[O][C][C][C][O][C][=C][C][=C][C][=C][Ring1][=Branch1][Ring1][#Branch2]>>[O][C][C][C][O][C][=C][C][=C][Branch1][C][I][C][=C][Ring1][#Branch1][Ring1][O]"}, {"from": "gpt", "value": "[Cl][C][Cl]"}]