Optically active quaternary ammonium salt, and method for producing optically active compound
    5.
    发明专利
    Optically active quaternary ammonium salt, and method for producing optically active compound 有权
    光学活性季铵盐及其生产光活性化合物的方法

    公开(公告)号:JP2013063942A

    公开(公告)日:2013-04-11

    申请号:JP2012002627

    申请日:2012-01-10

    CPC classification number: Y02P20/52

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an asymmetric catalyst useful for synthesis of an optically active amino acid derivative by an asymmetric reaction, and an optically active amino acid derivative useful in the fields of pharmaceuticals, agrochemicals, high-functional materials and the like, in a high yield and in a high purity.SOLUTION: The asymmetric catalyst is composed of a specific dibenzazepine derivative containing an optically active quaternary ammonium salt. The method for producing an optically active amino acid derivative includes carrying out asymmetric reactions such as an asymmetric aldol reaction, an asymmetric Mannich addition reaction, an asymmetric halogenation reaction, an asymmetric aminoxylation reaction, an asymmetric hydroxyamination reaction, an asymmetric Michael addition reaction or an asymmetric conjugated addition reaction.

    Abstract translation: 待解决的问题:提供一种用于制备用于通过不对称反应合成光学活性氨基酸衍生物的不对称催化剂的方法和用于药物,农业化学品,高分子化合物领域的光学活性氨基酸衍生物, 功能材料等,以高产率和高纯度。 解决方案:不对称催化剂由含有光学活性季铵盐的特定二苯并氮杂衍生物组成。 制备光学活性氨基酸衍生物的方法包括进行不对称反应,例如不对称醛醇缩合反应,不对称曼尼希加成反应,不对称卤化反应,不对称氨基羰基化反应,不对称羟基化反应,不对称迈克尔加成反应或 不对称共轭加成反应。 版权所有(C)2013,JPO&INPIT

    PHOTOCHROMIC CROWN COMPOUND AND OPTICAL RECORDING MEDIUM

    公开(公告)号:JPH06166870A

    公开(公告)日:1994-06-14

    申请号:JP32097092

    申请日:1992-11-30

    Abstract: PURPOSE:To obtain an optical recording medium which can reversibly repeat coloration and decoloration, is excellent in heat stability, can keep a colored state for a long time, has a long lifetime, and is capable of writing and erasing. CONSTITUTION:The objective photochromic crown compound is represented by the general formula (wherein X is O or S; R is hydrogen or halogen; R is 1-8C alkyl; R is hydrogen, alkoxyl, nitro or halogen; (n) is an integer of 1-5; and (m) is 0 or an integer of 1-5). A recording layer made from this compound is formed on a base to form the objective optical recording medium.

    INHIBITOR OF BLOOD PLATELET AGGREGATION

    公开(公告)号:JPS61277617A

    公开(公告)日:1986-12-08

    申请号:JP11653885

    申请日:1985-05-31

    Abstract: PURPOSE:An inhibitor of blood platelet aggregation promoting dissociation of blood platelet aggregation bulk in organism closely related to diseases such as arteriosclerosis, metastasis of cancer, etc., having excellent preventing effects on thrombosis, containing gliotoxin as an active ingredient. CONSTITUTION:The titled inhibitor containing glitoxin shown by the formula as an active ingredient. Oral administration, intravenous injection, etc. are preferable as administration method. Even if gliotoxin to be administered is not pure but a crude substance from a filtrate of culture mixture, it has no bad influence on inhibitory effect on blood platelet aggregation. Glitotoxin as the active ingredient can be produced by a microorganism or by chemical synthesis.

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