[{"from": "human", "value": "Please provide possible reagents based on the following chemical reaction. [C][C][O][C][=Branch1][C][=O][/C][=C][/C][P][=Branch1][C][=O][Branch1][Ring2][O][C][C][O][C][C]>>[C][C][O][P][=Branch1][C][=O][Branch1][=Branch2][C][/C][=C][/C][=Branch1][C][=O][O][O][C][C]"}, {"from": "gpt", "value": "[O].[K+1].[OH1-1]"}]