[{"from": "human", "value": "Generate a molecule based on this description. The molecule is a 2-hydroxy-3-oxobutyl phosphate. It is a conjugate acid of a (2S)-2-hydroxy-3-oxobutyl phosphate(2-)."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C@H1][Branch1][O][C][O][P][=Branch1][C][=O][Branch1][C][O][O][O]"}]