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