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    • 8. 发明公开
    • 광학활성을 갖는 시아노부탄트리올 유도체 및 그의 제조방법
    • 具有光合作用的氰基丁胺衍生物及其制备方法
    • KR1020010092864A
    • 2001-10-27
    • KR1020000015512
    • 2000-03-27
    • 국제약품 주식회사
    • 최영로김관수김진환
    • C07C255/11
    • C07D307/33C07B2200/07C07C255/12C07D317/30C07H3/02
    • PURPOSE: A method for synthesizing novel (2S,3R)-4-cyanobutane-1,2,3-triol derivative for the application as a precursor to the manufacture process of 2-dioxy-L-ribose that is a composition unit of meso-DNA and enantio-DNA that are useful as antisense drugs. The present (2S,3R)-4-cyanobutane-1,2,3-triol is easily synthesized by introducing cyano groups into the structure of epoxy compounds, and this method differ from conventional methods in which n-butyl lithium is required to activate dithiane compounds that are produced as intermediate. CONSTITUTION: The synthesizing method comprises the steps of (i) introducing cyano groups such as potassium cyanide and sodium cyanide into the epoxy compounds (formula III) in methanol solvent of ambient temperature range wherein the amount of cyano group is 6 to 10 equivalent weight based on the equivalent weight of the epoxy compound; (ii) hydrolyzing the (2S,3R)-4-cyano butane-1,2,3-triol derivative (formula I) obtained from 1st step; and then (iii) reducing the resultant obtained from 2nd step in tetrahydrofuran solvent to synthesize 2-dioxy-L-ribose (formula III) wherein £(Sia)2BH| is used as reductant. In the formula (I), R and R' represent hydrogen or hydroxy protection group respectively, and the hydroxy protection group is selected from isopropylidene, cyclohexylidene, benzylidene and benzyl.
    • 目的用于合成新型(2S,3R)-4-氰基丁烷-1,2,3-三醇衍生物的方法,用于作为内消旋组成单位的2-二氧基-L-核糖的制备过程的前体 -DNA和对映体DNA,可用作反义药物。 本发明的(2S,3R)-4-氰基丁烷-1,2,3-三醇通过将氰基引入环氧化合物的结构中容易合成,并且该方法不同于需要正丁基锂来活化的常规方法 作为中间体生产的二噻烷化合物。 构成:合成方法包括以下步骤:(i)在环境温度范围的甲醇溶剂中将氰基氰化物和氰化钠等氰基引入到环氧化合物(式III)中,其中氰基的量为6至10当量 相当于环氧化合物的重量; (ii)水解由第1步获得的(2S,3R)-4-氰基丁烷-1,2,3-三醇衍生物(式I) 然后(iii)将从第二步获得的产物还原在四氢呋喃溶剂中以合成2-二氧基-L-核糖(式III),其中£(Sia)2BH | 用作还原剂。 在式(I)中,R和R'分别表示氢或羟基保护基,羟基保护基选自异亚丙基,亚环己基,亚苄基和苄基。