[{"from": "human", "value": "Please provide possible reagents based on the following chemical reaction. [C][C][C][C][Br].[C][O][C][C][=C][NH1][C][=Branch1][C][=O][C][=Ring1][#Branch1][C][#N]>>[C][C][C][C][N][C][=C][C][Branch1][Ring1][O][C][=C][Branch1][Ring1][C][#N][C][Ring1][#Branch2][=O]"}, {"from": "gpt", "value": "[C][C][#N].[O][=C][Branch1][C][O-1][O-1].[K+1].[K+1]"}]