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