Process for the Preparation of (S)(+)-3-(Aminomethyl)-5-Methylhexanoic Acid
    1.
    发明申请
    Process for the Preparation of (S)(+)-3-(Aminomethyl)-5-Methylhexanoic Acid 审中-公开
    (S)(+) - 3-(氨基甲基)-5-甲基己酸的制备方法

    公开(公告)号:US20090143615A1

    公开(公告)日:2009-06-04

    申请号:US12327191

    申请日:2008-12-03

    IPC分类号: C07C229/04 C07C243/10

    摘要: A process for the preparation of a compound of formula (I), comprising:a) the reaction of a compound of formula (II) with hydrazine to obtain a compound of formula (III), b) the conversion of a compound of formula (III) by rearrangement via formation of nitrene/isocyanate, in a solvent of formula R1—OH, wherein R1 is as herein defined, to obtain a compound of formula (IV); c) the enantiomeric enrichment of a compound of formula (IV) to obtain the enantiomer (S) of a compound of formula (V) d) the hydrolysis of a compound of formula (V).

    摘要翻译: 一种制备式(I)化合物的方法,包括:a)式(II)化合物与肼的反应得到式(III)化合物,b)式(I)化合物 III)通过在式R 1 -OH的溶剂中通过形成硝酸/异氰酸酯重排,其中R 1如本文所定义,以获得式(IV)的化合物; c)式(Ⅳ)化合物的对映异构体富集,得到式(Ⅴ)化合物的对映异构体(S); d)式(Ⅴ)化合物的水解。

    Process for the preparation of tolterodine
    4.
    发明授权
    Process for the preparation of tolterodine 失效
    制备托特罗定的方法

    公开(公告)号:US07335793B2

    公开(公告)日:2008-02-26

    申请号:US11356953

    申请日:2006-02-21

    IPC分类号: C07C211/00 C09B11/02

    摘要: A novel process prepares tolterodine, i.e. (R)-N,N-diisopropyl-3-(2-hydroxy-5-methylphenyl)-3-phenylpropanamine, in the racemic form, as well as intermediates useful for its preparation. Tolterodine free base may be prepared by reacting diisopropyl-(3-phenyl-3-p-tolyloxy-propyl)-amine and 60% aqueous sulfuric acid for three hours under stirring at room temperature. The reaction mixture is then poured over ice/water and then alkalized with 50% NaOH.

    摘要翻译: 一种新颖的方法制备托特罗定,即外消旋形式的(R)-N,N-二异丙基-3-(2-羟基-5-甲基苯基)-3-苯基丙胺,以及可用于其制备的中间体。 通过二异丙基 - (3-苯基-3-对甲氧基 - 丙基) - 胺和60%硫酸水溶液在室温搅拌下反应3小时可以制备托特罗定游离碱。 然后将反应混合物倒入冰/水中,然后用50%NaOH碱化。

    Process for the preparation of entacapone
    7.
    发明授权
    Process for the preparation of entacapone 失效
    恩他卡朋的制备方法

    公开(公告)号:US07750177B2

    公开(公告)日:2010-07-06

    申请号:US11958778

    申请日:2007-12-18

    IPC分类号: C07C255/23

    CPC分类号: C07C253/30 C07C255/41

    摘要: A process for the preparation of entacapone, in particular as the polymorphic form A, comprising the preparation of a compound of formula (V), wherein R is C1-C6 alkyl, by condensation of N,N-diethyl-cyano-acetamide with a compound of formula (IV), wherein R is C1-C6 alkyl, in the presence of a strong basic agent; the dealkylation of the compound of formula (V) to obtain entacapone, and the crystallization thereof from methyl ethyl ketone is performed to yield the polymorphic form A. The polymorphic form A of entacapone may be used to treat Parkinson's disease and/or to enhance effectiveness of muscle control.

    摘要翻译: 恩替卡宾的制备方法,特别是多晶型A,其包括通过N,N-二乙基 - 氰基 - 乙酰胺与一种或多种式I化合物的缩合制备其中R为C1-C6烷基的式(Ⅴ)化合物 式(Ⅳ)化合物,其中R为C1-C6烷基,在强碱性试剂存在下; 进行式(V)化合物的脱烷基化以获得恩他卡朋,并从甲基乙基酮中进行结晶,得到多晶型A.恩他卡朋的多晶型A可用于治疗帕金森病和/或增强有效性 的肌肉控制。

    Process for the Preparation of Bosentan
    8.
    发明申请
    Process for the Preparation of Bosentan 审中-公开
    波生坦制备工艺

    公开(公告)号:US20090156811A1

    公开(公告)日:2009-06-18

    申请号:US12332491

    申请日:2008-12-11

    IPC分类号: C07D403/04

    CPC分类号: C07D239/52 Y02P20/55

    摘要: A process for the preparation of 4-tert-butyl-N-[6-(2-hydroxy-ethoxy)-5-(2-methoxy-phenoxy)-[2,2′]bipyrimidinyl-4-yl]-benzenesulfonamide, bosentan, comprising the reaction of a compound of formula (II) or a salt thereof, wherein Z is an optionally protected hydroxy group, with a compound of formula (III), in the presence of a base; and, if necessary, the removal of the hydroxy-protecting group, and/or, if desired, the conversion of a compound of formula (I) to a salt thereof, or vice versa; and novel intermediates useful for its synthesis.

    摘要翻译: 制备4-叔丁基-N- [6-(2-羟基 - 乙氧基)-5-(2-甲氧基 - 苯氧基) - [2,2']联嘧啶基-4-基] - 苯磺酰胺的方法, 波兰顿,其包含式(II)化合物或其盐,其中Z为任选保护的羟基与式(III)化合物在碱的存在下反应; 如果需要,除去羟基保护基,和/或如果需要,将式(I)化合物转化为其盐,反之亦然; 和用于其合成的新型中间体。