Resolution of racemates of primary and secondary heteroatom-substitued amines by enzyme-catalyzed acylation
    2.
    发明授权
    Resolution of racemates of primary and secondary heteroatom-substitued amines by enzyme-catalyzed acylation 失效
    通过酶催化酰化拆分初级和次级杂原子取代的胺的外消旋体

    公开(公告)号:US06214608B1

    公开(公告)日:2001-04-10

    申请号:US08875417

    申请日:1997-07-28

    IPC分类号: C12P4100

    CPC分类号: C12P41/007 C12P13/02

    摘要: A process for preparing optically active primary and secondary heteroatom-substituted amines from the corresponding racemates, which comprises a) enantioselective acylation of a racemic heteroatom-substituted amine with an ester whose acid component carries a fluorine, nitrogen, phosphorus, oxygen or sulfur atom in the vicinity of the carbonyl carbon, in the presence of a hydrolase, b) separation of the mixture of optically active heteroatom-substituted amine and optically active acylated heteroatom-substituted amine to obtain one enantiomer of the heteroatom-substituted amine, c) if required isolation of the other enantiomer of the heteroatom-substituted amine from the acylated heteroatom-substituted amine by amide cleavage.

    摘要翻译: 从相应的外消旋物制备光学活性的伯和仲杂原子取代的胺的方法,其包括:a)外消旋杂原子取代的胺与其酸成分在其中含有氟,氮,磷,氧或硫原子的酯的对映选择性酰化 在水解酶的存在下,羰基碳的邻近,b)分离光学活性的杂原子取代的胺和光学活性的酰化的杂原子取代的胺的混合物以获得杂原子取代的胺的一个对映异构体,c)如果需要的话, 的通过酰胺切割从酰化的杂原子取代的胺的杂原子取代的胺的另一个对映异构体。

    Process for hydrolyzing optically active amides
    4.
    发明授权
    Process for hydrolyzing optically active amides 有权
    水解光学活性酰胺的方法

    公开(公告)号:US06713652B1

    公开(公告)日:2004-03-30

    申请号:US09936348

    申请日:2001-09-11

    IPC分类号: C07C20900

    摘要: The present invention relates to a process for hydrolyzing optically active amides to carboxylic acids and optically active amines with retention of the center of chirality, where the hydrolysis of the amides is carried out with an alkali metal or alkaline earth metal hydroxide in the presence of 5-30% by weight, based on the amide employed, of a polyol or an amino alcohol.

    摘要翻译: 本发明涉及一种将光学活性酰胺水解成羧酸和光学活性胺的方法,其中保留了手性中心,其中酰胺的水解在碱土金属或碱土金属氢氧化物存在下进行5 -30重量%,基于所使用的酰胺,多元醇或氨基醇。