[{"from": "human", "value": "Given this chemical reaction, what are some reagents that could have been used? [C][O][C][=C][Branch1][C][F][C][=C][Branch1][C][Br][C][=C][Ring1][Branch2][N+1][=Branch1][C][=O][O-1]>>[C][O][C][=C][Branch1][C][N][C][=C][Branch1][C][Br][C][=C][Ring1][Branch2][F]"}, {"from": "gpt", "value": "[C][C][O].[Cl][C][Cl].[O].[Cl-1].[NH4+1].[Zn]"}]