[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [N][C][=N][C][Branch1][C][Cl][=C][Branch1][C][I][C][=C][Ring1][Branch2][N+1][=Branch1][C][=O][O-1]>>[N][C][=C][C][Branch1][C][I][=C][Branch1][C][Cl][N][=C][Ring1][Branch2][N]"}, {"from": "gpt", "value": "[C][C][O].[O].[Cl-1].[Fe].[NH4+1]"}]