Process for the preparation of 3-amino-2-hydroxy-4-phenylbutyronitrile
derivatives
    1.
    发明授权
    Process for the preparation of 3-amino-2-hydroxy-4-phenylbutyronitrile derivatives 失效
    3-氨基-2-羟基-4-苯基丁腈衍生物的制备方法

    公开(公告)号:US5834618A

    公开(公告)日:1998-11-10

    申请号:US994448

    申请日:1997-12-19

    CPC分类号: C07C253/00 Y02P20/55

    摘要: 3-Amino-2-hydroxy-4-phenylbutyronitrile derivatives represented by the formula (3) may be prepared by reacting an aminoaldehyde derivative represented by the formula (1) with a cyanohydrin derivative represented by the formula (2) in the presence of a metallic compound, base, or acid; ##STR1## wherein R.sup.1 and R.sup.2 each independently represents a hydrogen atom or a protective group for an amino group, R.sup.3 and R.sup.4 each represents an alkyl or cycloalkyl group or R.sup.3 and R.sup.4 together form a tetramethylene or pentamethylene group.

    摘要翻译: 由式(3)表示的3-氨基-2-羟基-4-苯基丁腈衍生物可以通过使由式(1)表示的氨基醛衍生物与式(2)表示的氰醇衍生物在 金属化合物,碱或酸; (3)其中R1和R2各自独立地表示氢原子或氨基的保护基,R3和R4各自表示烷基或环烷基或R3和 R4一起形成四亚甲基或五亚甲基。