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    • 2. 发明授权
    • 옥사졸린 화합물의 제조방법
    • 恶唑啉化合物的制备方法
    • KR100308876B1
    • 2001-09-26
    • KR1019990000836
    • 1999-01-14
    • 동국제약 주식회사
    • 박진규최경석이한원서성기함원훈오창영이기영김용현박민성
    • C07D263/02
    • 본발명은약리학적활성이강한화합물인베타-아미노-알파-히드록시산또는감마-아미노-베타-히드록시산으로화학적전환이용이한옥사졸린화합물을제조하는방법에관한것이다. 먼저알라닌, 발린, 루이신, 시스테인, 시클로헥실글리신, 시클로헥실알라닌, 페닐글리신, p-히드록시페닐글리신, 페닐알라닌또는 p-히드록시페닐알라닌과같은α-아미노산으로하기구조식 (4)의화합물을제조한후 팔라듐화합물을촉매로분자내고리화반응을이용하여옥사졸린화합물(3)을제조한다. 그런다음옥사졸린화합물(3)의비닐그룹(vinyl group)을 RuCl와 NaIO를이용한산화반응으로베타-아미노-알파-히드록시산으로화학적전환이용이한옥사졸린화합물(1)을합성하거나, 또는옥사졸린화합물(3)의비닐그룹을 9-Borabicyclo[3.3.1]nonane으로말단에히드록시그룹을도입하고말단히드록시그룹을 RuCl와 NaIO를이용한산화반응으로감마-아미노-베타-히드록시산으로화학적전환이용이한옥사졸린화합물(2)을제조할수 있다.
    • 3. 发明公开
    • 옥사졸린 화합물의 제조방법
    • 制备氧杂环丁烷化合物的方法
    • KR1020000050758A
    • 2000-08-05
    • KR1019990000836
    • 1999-01-14
    • 동국제약 주식회사
    • 박진규최경석이한원서성기함원훈오창영이기영김용현박민성
    • C07D263/02
    • PURPOSE: Provided is a method for preparing oxazoline compounds which is easy to be chemically converted into beta-amino-alpha-hydroxy acid or gamma-amino-beta-hydroxy acid which has strong pharmacological activities. The produced compounds can be used in the preparation of physiologically active substance. CONSTITUTION: A method comprises the steps of: preparing a compound of formula(3) by cyclization reaction using as a starting material, the alpha-amino acid of formula(4) such as Alanine, Valine, Leucine, Cystein, Cyclohexylglycine, Cyclohexylalanine, Phenylglycine, etc., in the presence of paladium as a catalyst; reacting the compound of formula(3) with 9-Borabicyclo£3.3.1|nonane dissolved in tetrahydrofuran using a first oxidizing agent; and preparing a compound of formula(2) using a mixture of acetonitrile/carbon tetrachloride /water as a solvent and a second oxidizing agent. In formula(3), R is methyl, isopropyl, sec-butyl, thiomethyl, cyclohexyl, cyclohexylmethyl, phenyl, p-hydroxyphenyl or p-hydroxyphenylmethyl.
    • 目的:提供易于化学转化为具有强药理活性的β-氨基-α-羟基酸或γ-氨基-β-羟基酸的恶唑啉化合物的方法。 生成的化合物可用于制备生理活性物质。 构成:一种方法包括以下步骤:通过使用作为起始原料的环化反应制备式(3)的化合物,式(4)的α-氨基酸如丙氨酸,缬氨酸,亮氨酸,半胱氨酸,环己基甘氨酸,环己基丙氨酸, 苯基甘氨酸等,在作为催化剂的the存在的情况下, 使用第一氧化剂使式(3)化合物与9-硼杂双环{3.3.1 |壬烷溶解在四氢呋喃中; 并使用乙腈/四氯化碳/水作为溶剂和第二氧化剂的混合物制备式(2)的化合物。 在式(3)中,R是甲基,异丙基,仲丁基,硫代甲基,环己基,环己基甲基,苯基,对羟基苯基或对羟基苯基甲基。
    • 4. 发明授权
    • 베타-아미노-알파-하이드록시산과 균등한 옥사졸린 유도체의 입체선택적 합성방법
    • 与β-氨基-LHHA-羟基酸反应的氧杂衍生物的异构选择性合成方法
    • KR100267596B1
    • 2000-10-16
    • KR1019980013716
    • 1998-04-17
    • 동국제약 주식회사
    • 함원훈최경석이한원서성기박진규이기영김용현
    • C07D263/10
    • C07D263/14C07C233/73C07C2601/08C07D263/12
    • PURPOSE: Provided is a stereoselective manufacturing method of oxazoline derivative which is equal to beta-amino-alpha-hydroxylic acid. The oxazoline derivative is represented by the formula (1). CONSTITUTION: The manufacturing method of oxazoline derivative comprises the steps of: cyclizing a compound of the formula (II) as a starting material at 20-50 deg.C in the presence of 0.02-0.1 mole % of palladium catalyst; removing X group to manufacture a compound of the formula (III); and oxidizing the compound of the formula (III) in the presence of ruthenium with adding oxidant into a mixed solvent of acetonitrile/carbon tetrachloride/water to obtain a compound of the formula (I). In the formula, R is phenyl, benzyl, methyl. ethyl, isopropyl, isobutyl, cyclohexyl or cyclohexylmethyl; and X is acetyl, benzoyl, or carbonate.
    • 目的:提供等同于β-氨基-α-羟基酸的恶唑啉衍生物的立体选择性制造方法。 恶唑啉衍生物由式(1)表示。 构成:恶唑啉衍生物的制造方法包括以下步骤:在0.02〜0.1摩尔%的钯催化剂存在下,将式(Ⅱ)化合物作为原料在20-50℃环化; 除去X基团以制备式(III)化合物; 并在钌存在下,将氧化剂氧化成乙腈/四氯化碳/水的混合溶剂,使式(Ⅲ)化合物氧化,得到式(I)化合物。 在该式中,R是苯基,苄基,甲基。 乙基,异丙基,异丁基,环己基或环己基甲基; X为乙酰基,苯甲酰基或碳酸酯。