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