Intermediate of cilastatin and preparation method thereof
    2.
    发明授权
    Intermediate of cilastatin and preparation method thereof 有权
    西司他丁的中间体及其制备方法

    公开(公告)号:US08822716B2

    公开(公告)日:2014-09-02

    申请号:US13148578

    申请日:2010-02-08

    摘要: Disclosed is a method for preparing 7-halo-2-oxoheptylate, an intermediate of cilastatin. The main steps are as follows: A. Addition reaction, in which 6-halo-hexanal is reacted with a cyanide to obtain 7-halo-α-hydroxyl-heptonitrile; B. Hydrolysis reaction, in which 7-halo-α-hydroxyl-heptonitrile is converted to 7-halo-α-hydroxyl-heptylic acid; C. Esterification reaction, in which 7-halo-α-hydroxyl-heptylic acid is converted to 7-halo-α-hydroxyl-heptylate; and D. Oxidation reaction, in which 7-halo-α-hydroxyl-heptylate is converted to 7-halo-2-oxoheptylate. 7-halo-α-hydroxyl-heptylic acid or ester thereof, which is a new intermediate for synthesizing 7-halo-2-oxoheptylate or cilastatin, and a method for synthesizing cilastatin are also disclosed. The methods of the invention are suitable for commercial production because of their simple process and mild reaction condition.

    摘要翻译: 公开了一种制备西洛司汀中间体7-卤-2-氧代庚酸盐的方法。 主要步骤如下:A.加入反应,其中6-卤代 - 己醛与氰化物反应得到7-卤代-α-羟基 - 庚腈; B.水解反应,其中7-卤代-α-羟基 - 庚腈转化为7-卤代-α-羟基 - 庚基酸; C.酯化反应,其中7-卤代-α-羟基 - 庚酸转化为7-卤代-α-羟基 - 庚基化物; 和D.氧化反应,其中7-卤代-α-羟基 - 庚酸酯转化为7-卤代-2-氧代庚酸盐。 还公开了作为合成7-卤-2-氧代庚酸盐或西司他丁的新中间体的7-卤-α-羟基 - 庚酸或其酯,以及合成西司他丁的方法。 本发明的方法由于工艺简单,反应条件温和,适用于商业生产。

    Intermediate of Cilastatin and Preparation Method Thereof
    3.
    发明申请
    Intermediate of Cilastatin and Preparation Method Thereof 有权
    西司他丁的中间体及其制备方法

    公开(公告)号:US20110319653A1

    公开(公告)日:2011-12-29

    申请号:US13148578

    申请日:2010-02-08

    摘要: Disclosed is a method for preparing 7-halo-2-oxoheptylate, an intermediate of cilastatin. The main steps are as follows: A. Addition reaction, in which 6-halo-hexanal is reacted with a cyanide to obtain 7-halo-α-hydroxyl-heptonitrile; B. Hydrolysis reaction, in which 7-halo-α-hydroxyl-heptonitrile is converted to 7-halo-α-hydroxyl-heptylic acid; C. Esterification reaction, in which 7-halo-α-hydroxyl-heptylic acid is converted to 7-halo-α-hydroxyl-heptylate; and D. Oxidation reaction, in which 7-halo-α-hydroxyl-heptylate is converted to 7-halo-2-oxoheptylate. 7-halo-α-hydroxyl-heptylic acid or ester thereof, which is a new intermediate for synthesizing 7-halo-2-oxoheptylate or cilastatin, and a method for synthesizing cilastatin are also disclosed. The methods of the invention are suitable for commercial production because of their simple process and mild reaction condition.

    摘要翻译: 公开了一种制备西洛司汀中间体7-卤-2-氧代庚酸盐的方法。 主要步骤如下:A.加入反应,其中6-卤代 - 己醛与氰化物反应得到7-卤代-α-羟基 - 庚腈; B.水解反应,其中7-卤代-α-羟基 - 庚腈转化为7-卤代-α-羟基 - 庚基酸; C.酯化反应,其中7-卤代-α-羟基 - 庚酸转化为7-卤代-α-羟基 - 庚基化物; 和D.氧化反应,其中7-卤代-α-羟基 - 庚酸酯转化为7-卤代-2-氧代庚酸盐。 还公开了作为合成7-卤-2-氧代庚酸盐或西司他丁的新中间体的7-卤-α-羟基 - 庚酸或其酯,以及合成西司他丁的方法。 本发明的方法由于工艺简单,反应条件温和,适用于商业生产。