[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule is a beta-hydroxy ketone that is butan-2-one substituted by a hydroxy group at position 4. It is a beta-hydroxy ketone and a methyl ketone. It is functionally related to a butan-2-one."}, {"from": "gpt", "value": "[C][C][=Branch1][C][=O][C][C][O]"}]