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1.发明授权Process for separating basic, acidic and amphoteric amino acids by electrodialysis 失效为碱性，酸性和两性氨基酸分离电渗析过程
公开(公告)号：EP0555324B1
公开(公告)日：1997-03-12
申请号：EP91919728.5
申请日：1991-10-31
发明人： LE GOFF, Jean-Pierre , GAVACH, Claude, CNRS, Lab. de Physico-Chimie des , SANDEAUX, Roger, CNRS, Lab. de Physico-Chimie des , SANDEAUX, Jacqueline, CNRS, Lab. de Physico-Chimie
IPC分类号： C07C227/40 , C07C227/28
CPC分类号： C07C227/28 , C07C227/40
摘要： A method of separating the acidic, basic and amphoteric components of an aqueous mixture of amino acids, which comprises introducing the mixture into a first electrodialyser chamber bounded by a cation exchange membrane and an anion exchange membrane, applying an electric potential across the chamber to cause the basic components to pass through the cation exchange membrane into a second electrodialyser chamber bounded by a further anion exchange membrane, and the acidic components to pass through the anion exchange membrane into a third electrodialyser chamber bounded by a further cationic exchange membrane, and maintaining the electric potential to permit the basic components and acidic components to accumulate in the second and third chambers respectively, thereby leaving the amphoteric components in the first chamber.
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公开(公告)号：EP0570443B1
公开(公告)日：1995-11-29
申请号：EP92904156.4
申请日：1992-02-07
IPC分类号： C07C217/10
CPC分类号： C07C231/20 , C07C217/10
摘要： A compound of formula (I), or a salt or solvate thereof, in which R1 and R2 each independently represents hydrogen, alkyl, optionally substituted aryl or optionally substituted aralkyl; R3 represents alkyl, optionally substituted aryl or optionally substituted aralkyl and R4 represents alkyl or optionally substituted aryl; a process for preparing such compounds and the use of such compounds for resolving certain racemates.
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