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31. 发明授权

US06369250B1 Process for preparing and/or purifying amido acid phenyl ester sulfonates 失效
标题翻译：酰胺酸苯酯磺酸盐的制备和/或纯化方法
公开(公告)号：US06369250B1
公开(公告)日：2002-04-09
申请号：US09485988
申请日：2000-02-17
申请人： Robert Richard Dykstra , Jeffrey Scott Dupont , Michael Eugene Burns
发明人： Robert Richard Dykstra , Jeffrey Scott Dupont , Michael Eugene Burns
IPC分类号： C07C23100
CPC分类号： C07C303/44 , C07C303/32 , C07C309/42
摘要： The present invention relates to a process for the preparation of a purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate. The process comprises the steps of: (a) providing a source of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate; (b) admixing the source with a water-based purification system to form a purification mixture, the water-based purification system having water present at a ratio of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate to water ranging from about 1:0.05 to about 1:50, preferably from about 1:0.1 to about 1:40; (c) separating a purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate from the purification mixture; and (d) collecting said purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino]alkanoate. In preferred embodiments, the purification mixture includes a processin aide such as ethyl alcohol, propyl alcohol, isopropyl alcohol, acetone and mixtures thereof.
摘要翻译：本发明涉及制备4-磺基苯基 - [（1-氧代烷酰基）氨基]链烷酸酯的纯化盐的方法。该方法包括以下步骤：（a）提供4-磺基苯基 - [（1-氧代烷酰基）氨基]链烷酸酯的来源; （b）将来源与水基净化系统混合以形成纯化混合物，所述水基净化系统具有以4-磺基苯基 - [（1-氧代烷酰基）氨基]链烷酸酯的比例存在的水与约 1:0.05至约1:50，优选约1:0.1至约1:40; （c）从纯化混合物中分离纯化的4-磺基苯基 - [（1-氧代烷酰基）氨基]链烷酸盐; 和（d）收集所述纯化的4-磺基苯基 - [（1-氧代烷酰基）氨基]链烷酸盐。在优选的实施方案中，纯化混合物包括处理物，例如乙醇，丙醇，异丙醇，丙酮及其混合物。

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