[{"from": "human", "value": "Given this chemical reaction, what are some reagents that could have been used? [C][I].[O][C][=C][C][Branch1][C][Cl][=C][C][=C][Ring1][#Branch1][Cl]>>[C][O][C][=C][C][Branch1][C][Cl][=C][C][=C][Ring1][#Branch1][Cl]"}, {"from": "gpt", "value": "[C][C][Branch1][C][C][=O].[O][=C][Branch1][C][O-1][O-1].[K+1].[K+1]"}]