Production method of hexahydrofurofuranol derivative, intermediate therefor and production method thereof
申请人:Sumika Fine Chemicals Co., Ltd.
公开号:US20040162340A1
公开(公告)日:2004-08-19
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.
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wherein each symbol is as defined in the specification.
本发明提供了一种在工业规模上高效且经济地生产化合物(XIV)的方法,该化合物可作为制药中间体,无需使用臭氧氧化和高毒性试剂,以及用于该方法的中间体。特别是,本发明提供了一种生产具有由公式(XV)表示的绝对构型及其对映体的化合物的方法,无需使用光学分辨等技术,以及用于该方法的中间体。(1) 以化合物(XIII)为起始材料,引导至化合物(I),引入保护基团后,进行还原和环化以得到化合物(XIV)。特别是,化合物(XIII)作为原料通过化合物(XX)引导至化合物(I),以生产化合物(XIV)。使用具有光学活性的化合物(XIII)作为起始材料,高度立体选择性地生产具有由公式(XV)表示的绝对构型等的化合物。(2) 以化合物(XXI)为起始材料,立体选择性地还原得到化合物(XXII),通过引入保护基团、还原和环化,得到化合物(XXVI),并通过反转羟基,生产化合物(XV)。其中每个符号的定义如说明书中所述。