PROCESS FOR THE PREPARATION OF DIPHENYL AZETIDINONE DERIVATIVES
    9.
    发明申请
    PROCESS FOR THE PREPARATION OF DIPHENYL AZETIDINONE DERIVATIVES 失效
    制备二苯甲酮衍生物的方法

    公开(公告)号:US20070149501A1

    公开(公告)日:2007-06-28

    申请号:US11557310

    申请日:2006-11-07

    IPC分类号: A61K31/397 C07D205/02

    CPC分类号: C07D205/08 Y02P20/55

    摘要: The present invention is a process for the preparation of diphenylazetidinone derivatives of the formula (I) or forms thereof comprising the substituents X, R1 and/or R2 as defined herein. More specifically, the invention comprises methods for the preparation of these compounds by cyclization of certain □-amino carboxamides or □-amino carboxylic esters. These diphenylazetidinone compounds are useful in the treatment of high blood serum cholesterol levels and the maintenance of the reduced cholesterol levels achieved thereby.

    摘要翻译: 本发明是制备式(I)的二苯并氮杂环丁酮衍生物或其形式的方法,其包含如本文所定义的取代基X,R 1和/或R 2 2 。 更具体地,本发明包括通过环化某些□ - 氨基甲酰胺或□ - 氨基羧酸酯来制备这些化合物的方法。 这些二苯基氮杂环丁酮化合物可用于治疗高血清胆固醇水平和维持由此实现的降低的胆固醇水平。

    2,2'-disubtituted 1,1'-diphosphino-ferrocenes and 1',2-disubstituted
1-phosphino-ferrocenes, processes for preparing them, their use, and
transition metal complexes comprising them
    10.
    发明授权
    2,2'-disubtituted 1,1'-diphosphino-ferrocenes and 1',2-disubstituted 1-phosphino-ferrocenes, processes for preparing them, their use, and transition metal complexes comprising them 失效
    2,2'-二取代的1,1'-二膦基二茂铁和1',2-二取代的1-膦基 - 二茂铁,其制备方法,它们的用途和包含它们的过渡金属络合物

    公开(公告)号:US5856540A

    公开(公告)日:1999-01-05

    申请号:US847448

    申请日:1997-04-24

    CPC分类号: C07C45/505 C07F17/02

    摘要: The present invention relates to optically active and racemic C.sub.2 -symmetric 2,2'-disubstituted 1,1'-diphosphino-ferrocenes of the formula Ia, to optically active and racemic asymmetric 1',2-disubstituted 1-phosphino-ferrocenes of the formula Ib and to achiral 2,2'-disubstituted 1,1'-diphosphino-ferrocenes of the formula II, to processes for preparing them, especially in accordance with the principle of asymmetric ortho-lithiation, to their use as ligands for transition metal complexes, to transition metal complexes comprising them, and to the use of the transition metal complexes as catalysts, especially in asymmetric syntheses. ##STR1##

    摘要翻译: 本发明涉及式Ia的光学活性和外消旋的C2对称的2,2'-二取代的1,1'-二膦基二茂铁,与光学活性和外消旋不对称1',2-二取代的1-膦基 - 二茂铁 式Ib和式II的非手性2,2'-双取代1,1'-二膦基二茂铁,用于制备它们的方法,特别是根据不对称邻位锂的原理,其用作过渡金属配体 络合物,包含它们的过渡金属络合物,以及使用过渡金属络合物作为催化剂,特别是在不对称合成中。