[{"from": "human", "value": "Can you suggest some reagents that might have been used in the given chemical reaction? [C][C][Br].[C][O][C][=C][C][N][=C][NH1][C][=Branch1][C][=O][C][=Ring1][#Branch1][C][=C][Ring1][O][O]>>[C][C][O][C][=C][C][C][=Branch1][C][=O][NH1][C][=N][C][=Ring1][#Branch1][C][=C][Ring1][O][O][C]"}, {"from": "gpt", "value": "[C][C][#N].[C][O].[O].[O][=C][Branch1][C][O-1][O-1].[Cs+1].[Cs+1]"}]