申请人:DUPHAR INTERNATIONAL RESEARCH B.V
公开号:EP0554933A1
公开(公告)日:1993-08-11
The present invention is concerned with the preparation of N-substituted vicinal aminoalcohol derivatives from the corresponding hydroxyl-protected cyanohydrin derivatives by successive partial reduction, transimination using a primary amine, reduction of the resulting imine and optional removal of the hydroxyl-protecting group. The products are obtained either as a racemate or in an optically pure form, depending upon the stereochemical composition of the starting cyanohydrin derivatives.
The present invention is also concerned with certain new enantiomerically pure hydroxyl-protected vicinal aminoalcohols.
本发明涉及从相应的羟基保护氰醇衍生物通过连续部分还原、使用伯胺反式、还原所得亚胺和任选去除羟基保护基团来制备 N-取代的代氨基醇衍生物。根据起始氰醇衍生物的立体化学组成,可以得到外消旋物或光学纯品。
本发明还涉及某些新的对映体纯羟基保护代氨基丙醇。