PROCESS FOR MANUFACTURING ENTACAPONE
    2.
    发明申请
    PROCESS FOR MANUFACTURING ENTACAPONE 审中-公开
    制造ENTACAPONE的方法

    公开(公告)号:WO2007090923A1

    公开(公告)日:2007-08-16

    申请号:PCT/FI2007/000029

    申请日:2007-02-06

    摘要: A new process for manufacturing entacapone comprising reacting 3,4-dihydroxy-5-nitrobenzaldehyde with N,N-diethyl-2-cyanoacetamide in the presence of a catalyst in a C 4 to 8 alcohol at reduced pressure and at a temperature of at least 70 °C, cooling the mixture to a temperature of 30 °C or below, seeding the mixture with N,N-diethyl-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylamide comprising at least 10 % of the Z-isomer by weight in the seeding crystals, cooling the mixture to a temperature of 5 °C or below, isolating the crystallized product and converting the obtained mixture of the E- and Z-isomers of N,N-diethyl-2-cyano-3-(3,4-dihydroxy-5-nitrophenyl)acrylamide to the E-isomer (entacapone).

    摘要翻译: 一种制造恩他卡朋的新方法,包括使3,4-二羟基-5-硝基苯甲醛与N,N-二乙基-2-氰基乙酰胺在催化剂存在下在C 4至8醇中减压和至少至少 将混合物冷却至30℃或更低的温度,将混合物与包含至少10%的N,N-二乙基-2-氰基-3-(3,4-二羟基-5-硝基苯基)丙烯酰胺接种, 的Z-异构体,将混合物冷却至5℃或更低的温度,分离结晶产物,并将所得的N,N-二乙基-2 氰基-3-(3,4-二羟基-5-硝基苯基)丙烯酰胺加入到E-异构体(恩他卡朋)中。

    PROCESS FOR THE PREPARATION OF 1-(3-DIMETHYLAMINOPROPYL) -1-(4-FLUOROPHENYL) -1,3-DIHYDROISOBENZOFURAN -5-CARBONITRILE
    3.
    发明申请
    PROCESS FOR THE PREPARATION OF 1-(3-DIMETHYLAMINOPROPYL) -1-(4-FLUOROPHENYL) -1,3-DIHYDROISOBENZOFURAN -5-CARBONITRILE 审中-公开
    制备1-(3-二甲基氨基丙基)-1-(4-氟代苯基)-1,3-二氢苯并呋喃-5-羧酸酯的方法

    公开(公告)号:WO2004011450A1

    公开(公告)日:2004-02-05

    申请号:PCT/FI2003/000557

    申请日:2003-07-10

    IPC分类号: C07D307/87

    摘要: The present invention is directed to novel processes for the preparation of citalopram comprising halogenation of a phthalide compound of formula II, wherein R is a suitable group to be changed to CN, to afford an acid halogenide compound of formula III wherein R is as defined above and X is halogen, and thereafter obtaining citalopram through two successive reactions with suitable organometallic halides or organoboranes or by a reaction with organometallic 4-fluorophenylhalide or 4-fluorophenylborane followed by reduction and alkylation, and an exchange of R to cyano to afford citalopram. The order of the reactions can be varied depending e.g. on the starting compound used.

    摘要翻译: 本发明涉及用于制备西酞普兰的新方法,其包括卤化式II的苯酞化合物,其中R是要改变为CN的合适基团,得到式III的酸式卤化物,其中R如上所定义 X是卤素,然后通过与合适的有机金属卤化物或有机硼烷的两次连续反应或通过与有机金属的4-氟代苯基卤化物或4-氟苯基硼烷的反应,然后还原和烷基化,以及R至氰基的交换来提供西酞普兰,获得西酞普兰。 反应的顺序可以根据例如, 在起始化合物上使用。