Process for preparing optically active beta-aminocarboxylic acids from racemic n-acylated beta-aminocarboxylic acids
    12.
    发明申请
    Process for preparing optically active beta-aminocarboxylic acids from racemic n-acylated beta-aminocarboxylic acids 审中-公开
    从外消旋的N-酰化β-氨基羧酸制备光学活性β-氨基羧酸的方法

    公开(公告)号:US20050153401A1

    公开(公告)日:2005-07-14

    申请号:US10508088

    申请日:2003-03-07

    IPC分类号: C12P41/00 C12R1/69 C12P13/04

    CPC分类号: C12P41/007

    摘要: A process is described for preparing optically active β-atninocarboxylic acids from racemic N-acylated β-aminocarboxylic acids by cnantiosclccthc hydrolysis of the N-acylated β-aminocarboxylic acid in the presence of a hydrolase by way of biocatalyst, wherein the N-acyl substituent of the N-acylated β-aminocarboxylic acid (I) exhibits Structure I in which R1, R2 are each selected, independently of one another, from H, halogen, alkiyl residues, OH, alkoxy residues and aryloxy residues; R3 is selected from halogen, alkoxy residues and aryloxy residues; (II) Structure IIA or IIB or the structure of the corresponding salts or (III) Structure III or the structure of the corresponding salt.

    摘要翻译: 描述了一种用于通过在水解酶存在下通过生物催化剂的N-酰化β-氨基羧酸水解N-外酰基化的β-氨基羧酸来制备光学活性β-阿魏酸的方法,其中N-酰基取代基 的N-酰化的β-氨基羧酸(I)表现出结构I,其中R 1,R 2各自彼此独立地选自H,卤素, 烷基残基,OH,烷氧基残基和芳氧基残基; R 3选自卤素,烷氧基残基和芳氧基残基; (II)结构IIA或IIB或相应盐的结构或(III)结构III或相应盐的结构。

    Process for the enantioselective epoxidation of C═C double bonds
    20.
    发明授权
    Process for the enantioselective epoxidation of C═C double bonds 失效
    C = C双键的对映选择性环氧化方法

    公开(公告)号:US06225482B1

    公开(公告)日:2001-05-01

    申请号:US09451100

    申请日:1999-11-30

    IPC分类号: C07D30332

    CPC分类号: C07D303/32

    摘要: A process for the enantioselective epoxidation of C═C double bonds and use of the epoxides. The present invention provides a process for the enantioselective epoxidation of compounds of the formula I by means of a diastereomer and enantiomer enriched homopolyamino acid and an oxidizing agent. The epoxides prepared according to the invention are used as intermediates in organic syntheses.

    摘要翻译: C = C双键的对映选择性环氧化方法和环氧化物的使用方法。本发明提供了通过非对映异构体和对映异构体富集的均聚氨基酸和氧化剂对式I化合物进行对映选择性环氧化的方法。 根据本发明制备的环氧化物用作有机合成中的中间体。