[{"from": "human", "value": "What reagents could have been utilized in the following chemical reaction? [F][C][C][Br].[O][=N+1][Branch1][C][O-1][C][C][=N][NH1][C][=Ring1][Branch1]>>[O][=N+1][Branch1][C][O-1][C][C][=N][N][Branch1][Ring2][C][C][F][C][=Ring1][Branch2]"}, {"from": "gpt", "value": "[C][C][#N].[O][=C][Branch1][C][O-1][O-1].[K+1].[K+1]"}]