[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is this compound belongs to the class of organic compounds known as beta hydroxy acids and derivatives. These are compounds containing a carboxylic acid substituted with a hydroxyl group on the C3 carbon atom. It is a 3-hydroxy carboxylic acid and a carboxylic ester."}, {"from": "gpt", "value": "[C][O][C][=Branch1][C][=O][C][Branch1][#Branch1][C][C][=Branch1][C][=O][O][O]"}]