Processes for the preparation of (3R,4S)-4-((4-benzyloxy)phenyl)-1-(4-fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-hydroxypropyl)-2-azetidinone, an intermediate for the synthesis of ezetimibe
    13.
    发明申请
    Processes for the preparation of (3R,4S)-4-((4-benzyloxy)phenyl)-1-(4-fluorophenyl)-3-((S)-3-(4-fluorophenyl)-3-hydroxypropyl)-2-azetidinone, an intermediate for the synthesis of ezetimibe 审中-公开
    制备(3R,4S)-4 - ((4-苄氧基)苯基)-1-(4-氟苯基)-3 - ((S)-3-(4-氟苯基)-3-羟丙基) - 2-氮杂环丁酮,合成依泽替米贝的中间体

    公开(公告)号:US20070259845A1

    公开(公告)日:2007-11-08

    申请号:US11517704

    申请日:2006-09-08

    CPC classification number: C07D205/08 Y02P20/55

    Abstract: The invention encompasses (3R,4S)-4-((4-benzyloxy)phenyl)-1-(4-fluorophenyl)-3-(3-(4-fluorophenyl)-3-oxopropyl)-2-azetidinone (Compound 2a) having an enantiomeric purity of at least about 97.5%. The invention also encompasses Compound 2a having a chemical purity of at least about 97%. The invention further encompasses processes for preparing Compound 2a from Compound 1 having the following formula: The invention also encompasses processes for preparing a compound having the following formula: from a compound having the following formula: wherein R is selected from the group consisting of: H or a hydroxyl protecting group. The invention also encompasses processes for preparing Compound 2a, preferably to form Compound 2a-Form 01. Also included are processes for preparing ezetimibe from Compound 2a-Form 01 or Compound 2a prepared according to the invention, compositions containing such ezetimibe, and methods for reducing cholesterol using such compositions.

    Abstract translation: 本发明包括(3R,4S)-4 - ((4-苄氧基)苯基)-1-(4-氟苯基)-3-(3-(4-氟苯基)-3-氧代丙基)-2-氮杂环丁酮(化合物2a )具有至少约97.5%的对映体纯度。 本发明还包括具有至少约97%的化学纯度的化合物2a。 本发明还包括从具有下式的化合物1制备化合物2a的方法:本发明还包括由具有下式的化合物制备具有下式的化合物的方法:其中R选自:H 或羟基保护基。 本发明还包括制备化合物2a,优选形成化合物2a-形式01的方法。还包括用于制备根据本发明制备的化合物2a-形式01或化合物2a的依泽替米贝的方法,含有这种依泽替米贝的组合物,以及还原方法 使用这种组合物的胆固醇。

    Processes for the preparation of a linezolid intermediate, linezolid hydroxide
    17.
    发明申请
    Processes for the preparation of a linezolid intermediate, linezolid hydroxide 审中-公开
    制备利奈唑胺中间体,利奈唑烷氢氧化物的方法

    公开(公告)号:US20090093631A1

    公开(公告)日:2009-04-09

    申请号:US12231769

    申请日:2008-09-05

    CPC classification number: C07D263/24 C07D263/26

    Abstract: Provided are methods for the enantiomeric purification of Linezolid hydroxide, comprising providing a solution or a slurry of Linezolid hydroxide and a solvent selected from alcohols and ketones and crystallizing Linezolid hydroxide from the solution or slurry to obtain Linezolid hydroxide with a low content of S isomer.

    Abstract translation: 本发明提供了利奈唑烷氢氧化物的对映异构体纯化方法,包括从溶液或浆液中提供选自醇和酮的溶剂或溶剂和选自醇和酮的溶剂和结晶的利奈唑烷,以获得具有低含量的S异构体的生产线型利唑烷。

    Crystalline form of sitagliptin
    20.
    发明申请
    Crystalline form of sitagliptin 审中-公开
    西他列汀的结晶形式

    公开(公告)号:US20090221595A1

    公开(公告)日:2009-09-03

    申请号:US12313975

    申请日:2008-11-25

    CPC classification number: C07D487/04

    Abstract: A Sitagliptin crystalline form characterized by PXRD pattern having any 5 peaks selected from the group consisting of 7.4, 11.5, 16.7, 17.7, 18.9, 24.1, 24.5, 27.0, 28.5 and 28.8±0.2 degrees 2-theta, wherein any combination of peaks selected includes the peak at 7.4±0.2 degrees two theta, processes for preparing said Sitagliptin crystalline form, and pharmaceutical compositions thereof, are provided.

    Abstract translation: 西他列汀结晶形式,其特征在于具有选自7.4,11.5,16.7,17.7,18.9,24.1,24.5,27.0,28.5和28.8±0.2度2-θ的任何5个峰的PXRD图,其中所选择的峰的任意组合 包括峰值在7.4±0.2度2θ,制备所述西格列汀结晶形式的方法及其药物组合物。

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