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