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    • 1. 发明专利
    • Cephem derivative
    • CEPHEM DERIVATIVE
    • JPS6150987A
    • 1986-03-13
    • JP17109884
    • 1984-08-16
    • Sumitomo Chem Co Ltd
    • YAMADA HIROTADAMASAI SEIICHIUEDA SHINJIOKUDA TAKAOKATO MASUHIROFUKAZAWA MASATOMOFUKUMURA MASATAKA
    • C07D501/36A61K31/545A61K31/546A61P31/04
    • NEW MATERIAL:A compound expressed by formula I [R
      1 is H or CH
      3 ; R
      2 is (esterified) carboxyl; n is 0 or 1] or a salt thereof.
      EXAMPLE: 7-[(Z)-2-Methoxyimino-2-( thiazol-4-yl )acetamido]-3-( 3-methyl-1,2,4-thiadiazol-5-yl)thiomethyl-3-cephem-4-carboxylic acid.
      USE: An antimicrobial agent for oral administration.
      PREPARATION: For example, a compound expressed by formula II (R
      3 is the same as R
      2 or protected carboxyl), e.g. 7-amino-3-(3-methyl-1,2,4-thiadiazol-5-yl) thiomethyl-3-cephem-4-carboxylic acid, is reacted with a compound (reactive derivative) expressed by formula III. e.g. 1-hydroxybenzotriazole ester of (Z)-2- methoxyimino-2-(thiazol-4-yl)acetic acid in a solvent, e.g. dimethylformamide (DMF), at ≤50°C.
      COPYRIGHT: (C)1986,JPO&Japio
    • 新材料:由式I [R 1]表示的化合物是H或CH 3; R 2是(酯化)羧基; n为0或1]或其盐。 实施例7 - [(Z)-2-甲氧基亚氨基-2-(噻唑-4-基)乙酰氨基] -3-(3-甲基-1,2,4-噻二唑-5-基)硫代甲基-3-头孢烯 吡啶-4-羧酸。 用途:口服给药的抗微生物剂。 制备:例如,由式II表示的化合物(R 3与R 2或被保护的羧基相同),例如, 7-氨基-3-(3-甲基-1,2,4-噻二唑-5-基)硫甲基-3-头孢烯-4-羧酸与由式III表示的化合物(反应性衍生物)反应。 例如 (Z)-2-甲氧基亚氨基-2-(噻唑-4-基)乙酸的1-羟基苯并三唑酯在溶剂如 二甲基甲酰胺(DMF),在<= 50℃。
    • 2. 发明专利
    • Optically active imidazolylpropanediol derivative and its preparation
    • 光学有效的咪唑并吡喃衍生物及其制备
    • JPS58203974A
    • 1983-11-28
    • JP5332783
    • 1983-03-28
    • Sumitomo Chem Co Ltd
    • SAJI KITAROUSATOU RENZOUAONO SHIYUNJIICHINOSE KATSUAKIOKUDA TAKAOATAMI TOSHIO
    • C07D233/60A61K31/415A61P31/04A61P31/10
    • NEW MATERIAL:(R)-2-(2,4-Dichlorophenyl)-1-(imidazol-1-yl)-2,3-propanediol of formula I .
      USE: A synthetic intermediate of optically active imidazolylalkylthiopropanol derivative having strong mycostatic activity.
      PROCESS: The optically active diol derivative of formula I can be prepared e.g. by (1) reacting the racemic imidazolyldiol derivative of formula II with an optically active carboxylic acid or its reactive derivative, preferably the optically active carboxylic acid of formula III to obtain the 1:1 mixture of two kinds of diastereomer esters, (2) separating the objective ester from the diastereomer mixture by chromatography, fractional recrystallization, etc., and (3) hydrolyzing the resultant ester.
      COPYRIGHT: (C)1983,JPO&Japio
    • 新材料:式I的(R)-2-(2,4-二氯苯基)-1-(咪唑-1-基)-2,3-丙二醇。 用途:具有很强的静电活性的光学活性咪唑基烷基硫代丙醇衍生物的合成中间体。 方法:式I的光学活性二醇衍生物可以例如制备。 通过(1)使式II的外消旋咪唑烷二醇衍生物与光学活性羧酸或其反应性衍生物,优选式III的光学活性羧酸反应,得到两种非对映体酯的1:1混合物,(2)分离 通过色谱法,分级重结晶等来自非对映异构体混合物的目标酯,和(3)水解所得酯。
    • 4. 发明专利
    • Optically active imidazolylmethyloxirane derivative and its preparation
    • 光学活性的咪唑啉衍生物衍生物及其制备
    • JPS58203988A
    • 1983-11-28
    • JP5332683
    • 1983-03-28
    • Sumitomo Chem Co Ltd
    • SAJI KITAROUSATOU RENZOUAONO SHIYUNJIICHINOSE KATSUAKIOKUDA TAKAOATAMI TOSHIO
    • C07C57/58C07B31/00C07B57/00C07C51/00C07C67/00C07D405/06
    • NEW MATERIAL:(R)-2-(2,4-Dichlorophenyl)-2-(imidazol-1-yl)methyloxirane of formula I .
      USE: A synthetic intermediate of optically active imidazolylalkylthiopropanol derivative having strong antifungal activity.
      PROCESS: The racemic isomer of the imidazolyldiol derivative of formula II is made to react with an optically active carboxylic acid (or its reactive derivative) (preferably the compound of formula III) to obtain two kinds of diastereomer esters, from which the objective ester is separated. The separated ester is hydrolyzed under alkaline condition, and the resultant optically active imidazolyldiol derivative of formula IV is methylated with methanesulfonyl chloride, and without isolating from the reaction system, treated with an alkali to obtain the objective compound of formula I .
      COPYRIGHT: (C)1983,JPO&Japio
    • 新材料:式I的(R)-2-(2,4-二氯苯基)-2-(咪唑-1-基)甲基环氧乙烷。 用途:具有强抗真菌活性的光学活性咪唑基烷基硫代丙醇衍生物的合成中间体。 方法:使式II的咪唑烷二醇衍生物的外消旋异构体与光学活性羧酸(或其反应性衍生物)(优选式III化合物)反应,得到两种非对映异构体酯,其中目标酯为 分开 将分离的酯在碱性条件下水解,将得到的式Ⅳ的旋光性咪唑烷二醇衍生物用甲磺酰氯甲基化,不用从反应体系中分离,用​​碱处理,得到目的化合物Ⅰ。