[{"from": "human", "value": "Given the following reaction, what are some possible reagents that could have been utilized? [C][I].[O][=C][NH1][C][=C][C][=C][C][=C][C][Branch1][C][Br][=C][Ring1][O][Ring1][#Branch1]>>[C][N][C][=C][C][=C][C][=C][C][Branch1][C][Br][=C][Ring1][#Branch1][C][Ring1][O][=O]"}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][=O].[O][=C][Branch1][C][O-1][O-1].[K+1].[K+1]"}]