[{"from": "human", "value": "Given this chemical reaction, what are some reagents that could have been used? [C][C][O][C][=Branch1][C][=O][C@@H1][C][C@@H1][C][C][C@H1][Ring1][=Branch1][O][Ring1][Branch1]>>[O][C][C@@H1][C][C@@H1][C][C][C@H1][Ring1][=Branch1][O][Ring1][Branch1]"}, {"from": "gpt", "value": "[C][C][O].[BH4-1].[Na+1]"}]