Process for producing optically active 3-aminobutanoic acid and the
ester intermediates
    6.
    发明授权
    Process for producing optically active 3-aminobutanoic acid and the ester intermediates 失效
    光学活性3-氨基丁酸和酯中间体的制备方法

    公开(公告)号:US5518903A

    公开(公告)日:1996-05-21

    申请号:US289031

    申请日:1994-08-11

    CPC分类号: C12P41/005 C12P13/04

    摘要: The present invention provides a process for producing optically active 3-aminobutanoic acid characterized in that it comprises an asymmetrically hydrolyzing racemic ester of 3-substituted aminobutanoic acid in the presence of a hydrolase, obtaining an optically active ester of 3-substituted aminobutanoic acid and an optically active 3-substituted aminobutanoic acid of an enantiomer of the ester, and treating the above ester represented by the formula (II): ##STR1## to remove the protecting group. In addition, the new ester intermediates represented by the above formula (II) are provided.

    摘要翻译: 本发明提供了一种光学活性3-氨基丁酸的制备方法,其特征在于,在水解酶存在下,其包含不对称水解的3-取代氨基丁酸的外消旋酯,得到3-取代氨基丁酸的光学活性酯和 光学活性的3-取代的氨基丁酸的酯的对映异构体,并处理由式(II)表示的上述酯:除去保护基。 此外,提供由上述式(II)表示的新的酯中间体。

    Process for producing an intermediate of a new quinolone compound
    8.
    发明授权
    Process for producing an intermediate of a new quinolone compound 失效
    制备新型喹诺酮化合物的中间体的方法

    公开(公告)号:US5623078A

    公开(公告)日:1997-04-22

    申请号:US666742

    申请日:1996-06-20

    IPC分类号: C07D209/52 C07D209/02

    CPC分类号: C07D209/02

    摘要: A production process with good efficiency, and applicable to production of a synthetic intermediate of a new quinolone anti-fungus agent CP-99219, is provided.A production process of an intermediate of a new quinolone compound expressed by the formula (IV) ##STR1## wherein R.sup.3 represents a benzyl group, a diphenylmethyl group, etc. and R.sup.4 represents a linear or branched alkyl group of 1 to 8C, a cycloalkyl group, etc.which process employs as a starting substance, a cyclopropanetricarboxylic acid triester expressed by the formula (I) ##STR2## wherein R.sup.1 and R.sup.2 represent a linear or branched alkyl group, a cycloalkyl group, an aryl group or an aralkyl group,and passes through seven steps.

    摘要翻译: 提供了一种效率高,适用于生产新型喹诺酮类抗真菌剂CP-99219的合成中间体的生产方法。 由式(IV)表示的新型喹诺酮化合物的中间体(IV)的制备方法,其中R 3表示苄基,二苯基甲基等,R 4表示1〜8的直链或支链烷基 ,该方法用作起始物质的环烷基等,由式(I)表示的环丙烷三羧酸三酯,支化烷基,环烷基,芳基或芳烷基,并通过七个步骤。

    Process for producing optically active compound
    10.
    发明授权
    Process for producing optically active compound 失效
    光学活性化合物的制造方法

    公开(公告)号:US5128252A

    公开(公告)日:1992-07-07

    申请号:US690256

    申请日:1991-04-25

    IPC分类号: C12P41/00

    CPC分类号: C12P41/004

    摘要: The invention provides an optically active compound which is R- or S- ester having the general formula: ##STR1## wherein R.sup.1 is hydrogen or acyl of 2-20 carbon atoms, R.sup.2 is alkyl, alkenyl or alkynyl of 3-40 carbon atoms, and the carbon indicated by * is an asymmetric carbon atom.

    摘要翻译: 本发明提供了具有以下通式的R-或S-酯的光学活性化合物:其中R1是氢或2-20个碳原子的酰基,R2是3-40的烷基,烯基或炔基 碳原子,由*表示的碳是不对称碳原子。