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