PROCESS FOR PRODUCING HEXAHYDROFUROFURANOL DERIVATIVE, INTERMEDIATE THEREOF AND PROCESS FOR PRODUCING THE SAME
申请人:Sumitomo Chemical Company, Limited
公开号:EP1589018A1
公开(公告)日:2005-10-26
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.
wherein each symbol is as defined in the specification.
本发明提供了一种不使用臭氧氧化和剧毒试剂,在工业规模上高效、经济地生产用作药剂中间体的化合物(XIV)的方法,以及用于该方法的中间体。特别是,本发明提供了一种不使用光学解析等技术生产具有式(XV)代表的绝对构型的化合物及其对映体的方法,以及用于该方法的中间体。
(1) 将作为起始原料的化合物 (XIII) 转化为化合物 (I),并在引入保护基团后进行还原和环化反应,得到化合物 (XIV)。特别是,将化合物(XIII)作为原料,通过化合物(XX)引向化合物(I),生成化合物(XIV)。以光学活性化合物 (XIII) 为起始原料,可高度立体选择性地制备出绝对构型如式 (XV) 所示的化合物等。
(2) 以化合物(XXI)为起始原料,进行立体选择性还原,得到化合物(XXII),通过引入保护基、还原和环化,得到化合物(XXVI),通过反转羟基,得到化合物(XV)。
其中各符号如说明书中所定义。