- 专利标题: Method for Preparation of 1,4-Sorbitan in Aqueous Medium
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申请号: US17423193申请日: 2020-01-16
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公开(公告)号: US20220064135A1公开(公告)日: 2022-03-03
- 发明人: Jieping Wei , Gesa Paradies , Benjamin Wyler , Dieter Scherer , Yanling Yang , Xiaolong Zhang , Weicheng Jiang , Reta Zhu
- 申请人: LONZA GUANGZHOU PHARMACEUTICAL LTD. , Lonza Ltd
- 申请人地址: CN Guangzhou, Guangdong; CH Visp
- 专利权人: LONZA GUANGZHOU PHARMACEUTICAL LTD.,Lonza Ltd
- 当前专利权人: LONZA GUANGZHOU PHARMACEUTICAL LTD.,Lonza Ltd
- 当前专利权人地址: CN Guangzhou, Guangdong; CH Visp
- 优先权: CNPCT/CN2019/071900 20190116,EP19154950.0 20190201,EP19157025.8 20190213,EP19157027.4 20190213
- 国际申请: PCT/EP2020/051059 WO 20200116
- 主分类号: C07D307/20
- IPC分类号: C07D307/20
摘要:
The invention discloses a method for preparation of 1,4-sorbitan by dehydration of D-sorbitol in aqueous medium, wherein one equivalent of water is removed and a cyclization occurs, followed by a treatment with ethanol and isopropanol.
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