[{"from": "human", "value": "Can you suggest some reagents that might have been used in the given chemical reaction? [C][C][N][C][C][N][Branch1][=N][C][=C][C][=C][Branch1][Ring1][C][=O][C][=N][Ring1][Branch2][C][C][Ring1][=C]>>[C][C][N][C][C][N][Branch1][=N][C][=C][C][=C][Branch1][Ring1][C][O][C][=N][Ring1][Branch2][C][C][Ring1][=C]"}, {"from": "gpt", "value": "[C][C][O].[BH4-1].[Na+1]"}]