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