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