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