[{"from": "human", "value": "From the provided chemical reaction, propose some possible reagents that could have been used. [C][C][=O].[N][#C][C][=C][C][=C][C][Branch1][C][N][=C][Ring1][#Branch1]>>[C][C][N][C][=C][C][=C][C][Branch1][Ring1][C][#N][=C][Ring1][Branch2]"}, {"from": "gpt", "value": "[C][O].[C][O-1].[BH4-1].[Na+1].[Na+1].[Na+1].[OH1-1]"}]