[{"from": "human", "value": "Given the following chemical reaction, what are some potential reagents that could have been employed? [C][C][=Branch1][C][=O][C][=C][C][=C][Branch1][C][O][C][=C][Ring1][#Branch1].[I][I]>>[C][C][=Branch1][C][=O][C][=C][C][=C][Branch1][C][O][C][Branch1][C][I][=C][Ring1][Branch2]"}, {"from": "gpt", "value": "[O].[I-1].[K+1].[NH4+1]"}]