Method for producing escitalopram
    7.
    发明专利
    Method for producing escitalopram 有权
    生产ESCITALOPRAM的方法

    公开(公告)号:JP2009149600A

    公开(公告)日:2009-07-09

    申请号:JP2008224435

    申请日:2008-09-02

    摘要: PROBLEM TO BE SOLVED: To provide a method for dividing 4-[4-(dimethylamino)-1-(4'-fluorophenyl)-1-hydroxybutyl]-3-(hydroxymethyl)-benzonitrile to its isolated enantiomers.
    SOLUTION: This method for dividing escitalopram is provided by making the 4-[4-(dimethylamino)-1-(4'-fluorophenyl)-1-hydroxybutyl]-3-(hydroxymethyl)-benzonitrile which is a racemic mixture or a non-racemic enantiomer mixture, as the salts of (+)-(S,S)- or (-)-(R,R)-enantiomer of O,O'-di-p-toluoyl-tartaric acid, and dividing to its enantiomers by fractionally crystallizing the salts in a solvent system containing 1-propanol, ethanol or acetonitrile.
    COPYRIGHT: (C)2009,JPO&INPIT

    摘要翻译: 待解决的问题:提供将4- [4-(二甲基氨基)-1-(4'-氟苯基)-1-羟基丁基] -3-(羟甲基) - 苄腈分离成其分离的对映异构体的方法。 解决方案:通过制备作为外消旋混合物的4- [4-(二甲基氨基)-1-(4'-氟苯基)-1-羟基丁基] -3-(羟甲基) - 苄腈来提供这种分配依他普仑的方法 或作为O,O-二对甲苯酰 - 酒石酸的(+) - (S,S) - 或( - ) - (R,R) - 对映体的盐的非外消旋对映异构体混合物,和 通过在含有1-丙醇,乙醇或乙腈的溶剂体系中将盐分数结晶而分成其对映异构体。 版权所有(C)2009,JPO&INPIT

    Processes for producing 5-phthalanecarbonitrile and citalopram
    8.
    发明专利
    Processes for producing 5-phthalanecarbonitrile and citalopram 审中-公开
    生产5-对苯二胺和胆碱的方法

    公开(公告)号:JP2006176490A

    公开(公告)日:2006-07-06

    申请号:JP2005179989

    申请日:2005-06-20

    IPC分类号: C07D307/87

    CPC分类号: C07D307/87

    摘要: PROBLEM TO BE SOLVED: To provide a process capable of carrying out a dehydration at a comparatively low temperature and producing a product of the dehydration free from discoloring in a process producing citalopram comprising dehydration of an oxime compound. SOLUTION: The invention relates to the process for producing the citalopram comprising a step in which a compound represented by formula (I) is dehydrated by using oxalyl chloride preferably in a mixed solvent composed of aromatic hydrocarbons and aprotic polar solvents to obtain a compound represented by formula (II), and a step in which the compound represented by formula (II) is reacted with a 3-dimethylaminopropyl halide. COPYRIGHT: (C)2006,JPO&NCIPI

    摘要翻译: 要解决的问题:提供一种能够在较低温度下进行脱水的方法,并且在生产西酞普兰的方法中产生脱褪色产物,该方法包括肟化合物的脱水。 解决方案:本发明涉及西酞普兰的生产方法,其包括通过使用草酰氯优选在由芳族烃和非质子极性溶剂组成的混合溶剂中使式(I)表示的化合物脱水的步骤,以获得 由式(II)表示的化合物和由式(II)表示的化合物与3-二甲基氨基丙基卤反应的步骤。 版权所有(C)2006,JPO&NCIPI