Process for preparing montelukast and salts thereof
    5.
    发明申请
    Process for preparing montelukast and salts thereof 失效
    孟鲁司特及其盐的制备方法

    公开(公告)号:US20070208178A1

    公开(公告)日:2007-09-06

    申请号:US11711042

    申请日:2007-02-27

    IPC分类号: C07D215/16

    CPC分类号: C07D215/18

    摘要: The present invention provides a process for preparing highly pure montelukast and salts thereof by reacting the side-chain precursor 1-(mercaptomethyl)-cyclopropaneacetic acid with 2-(2-(3S)-(3-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-(methanesulfonyloxypropyl)phenyl-2-propanol in a solvent mixture containing a base.

    摘要翻译: 本发明提供了一种通过使侧链前体1-(巯基甲基) - 环丙烷乙酸与2-(2-(3S) - (3-(7-氯-2-喹啉基) ) - 乙烯基)苯基)-3-(甲磺酰氧基丙基)苯基-2-丙醇。

    Process for preparing Imiquimod
    6.
    发明申请
    Process for preparing Imiquimod 失效
    咪喹莫特的制备方法

    公开(公告)号:US20070135640A1

    公开(公告)日:2007-06-14

    申请号:US11298711

    申请日:2005-12-12

    IPC分类号: C07D471/02

    CPC分类号: C07D471/04

    摘要: The present invention provides a process for preparing 4-amino-1-isobutyl-1H-imidazo[4,5-c]quinoline (Imiquimod) of formula (I). The process comprises heating 4-chloro-1-isobutyl-1H-imidazo[4,5-c]quinoline of formula (II) with formamide, and optionally with bubbling of gaseous ammonia to afford Imiquimod of formula (I). According to the present invention, by using this process and novel purification methods, essentially as described herein, highly pure Imiquimod is obtained.

    摘要翻译: 本发明提供了制备式(I)的4-氨基-1-异丁基-1H-咪唑并[4,5-c]喹啉(咪喹莫德)的方法。 该方法包括用甲酰胺加热式(II)的4-氯-1-异丁基-1H-咪唑并[4,5-c]喹啉,并任选用气态氨气鼓泡,得到式(I)的咪喹莫特。 根据本发明,通过使用该方法和新颖的纯化方法,基本上如本文所述,获得高纯度的咪喹莫特。

    Process for preparing 1-methylindazole-3-carboxylic acid
    7.
    发明授权
    Process for preparing 1-methylindazole-3-carboxylic acid 失效
    1-甲基吲唑-3-羧酸的制备方法

    公开(公告)号:US07060841B2

    公开(公告)日:2006-06-13

    申请号:US10453427

    申请日:2003-06-03

    IPC分类号: C07D231/56

    CPC分类号: C07D231/56

    摘要: The invention provides a process for preparing 1-methylindazole-3-carboxylic acid of formula (I): which comprises reacting a methylating agent with indazole-3-carboxylic acid of formula (VI): in the presence of an alkaline earth metal oxide or alkoxide in an appropriate solvent. Also provided is a process for producing Granisetron, using the method of the present invention for producing 1-methylindazole-3-carboxylic acid.

    摘要翻译: 本发明提供了制备式(I)的1-甲基吲唑-3-羧酸的方法:其包括使甲基化试剂与式(VI)的吲唑-3-羧酸在碱土金属氧化物或 醇盐在合适的溶剂中。 还提供了使用本发明的用于生产1-甲基吲唑-3-羧酸的方法生产格拉司琼的方法。