专利号:CN-114763566-A 优先权日:2021-01-11 标 题 :A kind of method of biocatalytic synthesis of 3-hydroxy-3-methylbutyric acid
专利号:US-9598344-B2 优先权日:2013-04-12 标 题 :β-Hydroxy-β-methylbutyric (HMB) acid purification method 发明人:LONG LING; TANG YONGEHUN 权利人:TSI (CHINA) CO LTD; TSI PHARMACEUTICAL (JI-ANGYIN) CO LTD 摘要:The present invention relates generally to the field of chemical synthesis. Specifically, the present invention relates to a method for purification of β-hydroxyl-β-methyl butyrate comprising (1) neutralizing a crude β-hydroxyl-β-methyl butyrate; (2) cooling and crystallizing the crude β-hydroxyl-β-methyl butyrate solution to create a β-hydroxyl-β-methyl butyrate salt; (3) dissolving and acidifying the salt; and (4) extracting the resultant high purity β-hydroxyl-β-methyl butyrate. Additionally, the present invention relates to a method of obtaining high purity β-hydroxyl-β-methyl butyrate at normal temperature and vacuum conditions.