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    • 5. 发明公开
    • 광학활성을 갖는 5-히드록시-3-옥소헵타노에이트 유도체의제조방법
    • 制备光学活性的5-羟基-3-氧代苯甲酸酯衍生物的方法
    • KR1020090105309A
    • 2009-10-07
    • KR1020080030682
    • 2008-04-02
    • 주식회사 파마코스텍
    • 유형철박호현김재원민인기차영권김봉기윤서영
    • C07C201/06C07C205/51C07C205/15
    • PURPOSE: A process for preparing optically active 5-hydroxy-3-oxoheptanoate derivatives with optical activity is provided to be useful in the manufacture of a statin compound and to ensure mass production and high yield. CONSTITUTION: A process for preparing optically active 5-hydroxy-3-oxoheptanoate derivatives with optical activity comprises the steps of: ring-opening a compound of the chemical formula 2 and nitromethane sodium salt; preparing an intermediate compound of chemical formula 5 through substitution reaction with cyanide without a refining process; ring-opening a compound of the chemical formula 3 and cyanide; preparing an intermediate compound of chemical formula 5 through substitution reaction with nitromethane sodium salt; preparing an intermediate compound of chemical formula 6 through ring opening reaction of a compound of the chemical formula 4 and nitromethane sodium salt; and reacting the intermediate of chemical formula 5 or 6 with chemical formula 7 in the presence of zinc.
    • 目的:制备具有光学活性的光学活性的5-羟基-3-氧代庚酸衍生物的方法可用于制备他汀类化合物并确保大量生产和高产率。 构成:用光学活性制备光学活性的5-羟基-3-氧代庚酸衍生物的方法包括以下步骤:打开化学式2的化合物和硝基甲烷钠盐; 通过与氰化物的取代反应制备化学式5的中间体化合物而不进行精制过程; 打开化学式3和氰化物的化合物; 通过与硝基甲烷钠盐的取代反应制备化学式5的中间体化合物; 通过化学式4的化合物和硝基甲烷钠盐的开环反应制备化学式6的中间体化合物; 并在锌的存在下使化学式5或6的中间体与化学式7反应。
    • 6. 发明公开
    • 광학 활성 헤미에스테르의 제조 방법
    • 用于生产光学活性血红蛋白的方法
    • KR1020010078802A
    • 2001-08-21
    • KR1020010006416
    • 2001-02-09
    • 스미또모 가가꾸 가부시끼가이샤
    • 이와꾸라가즈노리소우다히로시
    • C07C205/51
    • C07D233/32
    • PURPOSE: Provided is a method which enables optically active hemiesters to be advantageously obtained by reacting a cyclic acid anhydride with a hydroxy compound in the presence of an amount of an asymmetric catalyst to perform ring-opening reaction. CONSTITUTION: The method for producing optically active hemiesters represented by general formula(1) is to react a cyclic acid anhydride represented by general formula(2) with a hydroxy compound represented by general formula:R3OH in the presence of an asymmetric catalyst and in the presence or absence of a basic compound. In the formulas, R1 and R2 are different with each other and independently hydrogen atom, halogen atom, alkoxy radical, or alkyl radical optionally substituted by halogen atom, R3 is alkoxy radical, phenoxy radical, dialkylamino radical, or alkyl radical optionally substituted by halogen atom.
    • 目的:提供通过在一定量的不对称催化剂存在下使环状酸酐与羟基化合物反应进行开环反应而使光学活性半酯有利地得到的方法。 构成:由通式(1)表示的光学活性半成品的制造方法是在不对称催化剂的存在下使通式(2)表示的环状酸酐与通式R 3 OH表示的羟基化合物反应, 存在或不存在碱性化合物。 在式中,R 1和R 2彼此不同,独立地为氢原子,卤原子,烷氧基或任选被卤素原子取代的烷基,R 3为烷氧基,苯氧基,二烷基氨基或任选被卤素取代的烷基 原子。