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