发明授权
US4319040A Process for the production of optically active
threo-3-(3,4-dihydroxyphenyl)serine
失效
制备光学活性的3-(3,4-二羟基苯基)丝氨酸的方法
- 专利标题: Process for the production of optically active threo-3-(3,4-dihydroxyphenyl)serine
- 专利标题(中): 制备光学活性的3-(3,4-二羟基苯基)丝氨酸的方法
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申请号: US170152申请日: 1980-07-18
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公开(公告)号: US4319040A公开(公告)日: 1982-03-09
- 发明人: Naohito Ohashi , Shoji Nagata , Kikuo Ioshizumi , Junki Katsube
- 申请人: Naohito Ohashi , Shoji Nagata , Kikuo Ioshizumi , Junki Katsube
- 申请人地址: JPX Osaka
- 专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人地址: JPX Osaka
- 优先权: JPX54-106483 19790820
- 主分类号: C07C227/34
- IPC分类号: C07C227/34 ; C07C67/00 ; C07C227/00 ; C07C227/16 ; C07C229/36 ; C07B19/00
摘要:
Improved process for the production of optical aCTIVE (D- or L-) threo-3-(3,4-dihydroxyphenyl)serine, which comprises subjecting racemic threo-3-(3,4-dibenzyloxyphenyl)-N-carbobenzyloxyserine to optical resolution by using as a resolving reagent an optical active amino alcohol derivative, and then subjecting the resulting optical active (D- or L-) threo-3-(3,4-dibenzyloxyphenyl)-N-carbobenzyloxyserine to hydrogenolysis.
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