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    • 5. 发明申请
    • Production method of hexahydrofurofuranol derivative, intermediate therefor and production method thereof
    • 六氢呋喃醇衍生物的制备方法及其制备方法
    • US20040162340A1
    • 2004-08-19
    • US10744733
    • 2003-12-23
    • Sumika Fine Chemicals Co., Ltd.
    • Tetsuya IkemotoDongguo Piao
    • A61K031/365C07D307/26
    • C07C69/708C07D307/20C07D307/33C07D407/04C07D493/04Y02P20/55
    • The present invention provides a method for producing compound (XIV) useful as an intermediate for pharmaceutical agents efficiently and economically on an industrial scale without using ozone oxidation and highly toxic reagent, and an intermediate used for this method. Particularly, the present invention provides a method for producing a compound having an absolute configuration represented by the formula (XV) and an enantiomer thereof without using a technique such as optical resolution and the like, and an intermediate used for this method. (1) Compound (XIII) as a starting material is led to compound (I), and after introducing a protecting group, subjected to reduction and cyclization to give compound (XIV). Particularly, compound (XIII) as a material is led to compound (I) via compound (XX) to produce compound (XIV). Using an optically active compound (XIII) as a starting material, a compound having an absolute configuration represented by the formula (XV) and the like are produced highly stereoselectively. (2) Compound (XXI) as a starting material is stereoselectively reduced to give compound (XXII), and by introduction of a protecting group, reduction and cyclization, compound (XXVI) is obtained, and by inverting hydroxyl group, compound (XV) is produced. 1 wherein each symbol is as defined in the specification.
    • 本发明提供了在不使用臭氧氧化和高毒性试剂的情况下,以工业规模有效且经济地用作药剂中间体的化合物(XIV)的制备方法和用于该方法的中间体。 特别地,本发明提供了使用具有式(XV)表示的绝对构型的化合物及其对映异构体的方法,而不使用光学拆分等技术,以及用于该方法的中间体。 (1)作为原料的化合物(XIII)被引入化合物(I),引入保护基后,进行还原和环化,得到化合物(XIV)。 特别地,作为材料的化合物(XIII)通过化合物(XX)导入化合物(I)以制备化合物(XIV)。 使用光学活性化合物(XIII)作为原料,高度立体选择地制备具有由式(XV)表示的绝对构型的化合物等。 (2)作为原料的化合物(XXI)立体选择性还原得到化合物(XXII),通过引入保护基进行还原和环化,得到化合物(XXVI),通过羟基转化,化合物(XV) 生产。 其中每个符号如说明书中所定义。