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