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    • 10. 发明专利
    • Novel oligomannoside and manufacture of the same
    • 新的低聚糖和其制造方法
    • JPS5936101A
    • 1984-02-28
    • JP14666482
    • 1982-08-24
    • Rikagaku KenkyushoSapporo Breweries Ltd
    • OGAWA TOMOYAYAMAMOTO HISAOMORI YOSHITADA
    • C08B37/00A61K31/715A61P35/00
    • NEW MATERIAL:An oligomannoside of formula I (R
      1 and R
      2 are each H, acetyl or benzyl).
      USE: As an intermediate for the mannan with antitumor activity, and an regent for the elucidation of the biological significance of said mannan.
      PROCESS: First, a compound of formula II (Ac is acetyl) is made to react with benzyl alcohol in the presence of a Lewis acid catalyst followed by deacetylation to prepare a novel compound of formula III (Bn is benzyl). Secondly, this novel compound is allowed to react with the compound of the formula II mentioned above to obtain a disaccharide, which is then further made to react with a compound of formula IV (X is halogen) to produce a trisaccharide followed by deacetylation to obtain a triol trisaccharide. Thirdly, this trisaccharide is further allowed to react with a compound of formula V so that the ratio of the number of molecules of the former to the latter is 1:3 and also, if required, carriying out the protective group removal thus manufacturing the objective nonasaccharide of the formula I . Both the disaccharide and trisaccharide mentioned above are also novel compounds.
      COPYRIGHT: (C)1984,JPO&Japio
    • 新材料:式I的低聚半乳糖苷(R1和R2各自为H,乙酰基或苄基)。 用途:作为具有抗肿瘤活性的甘露聚糖的中间体,以及阐明所述甘露聚糖的生物学意义的药剂。 方法:首先,使式II化合物(Ac是乙酰基)在苯甲醇中在路易斯酸催化剂存在下反应,然后脱乙酰以制备新的式III化合物(Bn是苄基)。 其次,使该新化合物与上述式II的化合物反应,得到二糖,然后进一步与式IV化合物(X为卤素)反应,生成三糖,然后脱乙酰,得到 三醇三糖。 第三,进一步使该三糖与式V的化合物反应,使得前者与后者的分子数之比为1:3,并且,如果需要的话,将保护基团除去,从而制造目标 式I的非糖。 上述二糖和三糖都是新化合物。