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