[{"from": "human", "value": "Please provide possible reagents based on the following chemical reaction. [C][O][C][=Branch1][C][=O][C][=C][C][Branch1][C][N][=N][C][=N][Ring1][#Branch1]>>[N][C][=C][C][Branch1][Ring1][C][O][=N][C][=N][Ring1][Branch2]"}, {"from": "gpt", "value": "[C][O].[BH4-1].[Li+1]"}]