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