[{"from": "human", "value": "Please suggest some possible reagents that could have been used in the following chemical reaction. [C][C][Branch1][C][C][C][C][C][C][C][Branch1][C][C][Branch1][C][C][C][Ring1][#Branch2][=O]>>[C][C][Branch1][C][C][C][C][C][C][C][Branch1][C][C][Branch1][C][C][C][Ring1][#Branch2][O]"}, {"from": "gpt", "value": "[C][C][O][C][C].[O].[O][=S][=Branch1][C][=O][Branch1][C][O][O].[Al+3].[H-1].[H-1].[H-1].[H-1].[Li+1]"}]