[{"from": "human", "value": "Given the following chemical reaction, what are some potential reagents that could have been employed? [C][C][Branch1][C][C][C][C][C][Branch1][C][C][Branch1][C][C][C][Ring1][Branch2][=O]>>[C][C][Branch1][C][C][C][C][C][Branch1][C][C][Branch1][C][C][C][Ring1][Branch2][O]"}, {"from": "gpt", "value": "[C][O].[O].[BH4-1].[Na+1]"}]