[{"from": "human", "value": "Based on the given chemical reaction, suggest some possible reagents. [O][=C][C][C][=N][NH1][C][=Ring1][Branch1].[O][C][C][Br]>>[O][=C][C][C][=N][N][Branch1][Ring2][C][C][O][C][=Ring1][Branch2]"}, {"from": "gpt", "value": "[C][C][#N].[O][=C][Branch1][C][O-1][O-1].[K+1].[K+1]"}]