会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 23. 发明授权
    • 4-히드록시-5-메틸-3[2H]-퓨라논의 제조방법
    • 4-羟基-5-甲基-3H- 2H-呋喃酮的制备
    • KR100134641B1
    • 1998-04-18
    • KR1019930028308
    • 1993-12-17
    • 주식회사 아모레퍼시픽그룹
    • 부용출전체옥김은정노경원
    • C09K15/00
    • The present invention related to a process for manufacturing 4-hydroxy-5-methyl-3[2H -puranon and the use as antioxidant.The present invention comprised a process of obtaining extraction liquid by adding aqueous solvent like water, ethanol, methanol, propanol, aceton or mixed liquid thereof to bark or leaf of pinaceae plant at room temperature or by heating; a process of obtaining extract by evaporating extract liquid acquired in said first process obtaining aqueous solution with division by adding liposolubility solvent like butanol, ethylacetate, toluene, n-hexane after diluting by adding water to extract; a process of obtaining 4-hydroxy- 5-methyl-3[2H -puranon by recrystallization in water or methanol after operating chromatography matter obtained by evaporating aqueous solution acquired in said second process with water:acetonitrile :methanol=70-95%:25-30% compound liquid as elute solution using lichrosorb RP-18 column.
    • 本发明涉及4-羟基-5-甲基-3 [2H-嘌呤的制备方法和用作抗氧化剂的方法。本发明包括通过加入水,乙醇,甲醇,丙醇等水溶剂获得萃取液的方法 ,丙酮或其混合液体在室温下或通过加热到松果植物的树皮或叶子; 通过蒸发在所述第一种方法中获取的提取液获得提取液,通过加入脂溶性溶剂如丁醇,乙酸乙酯,甲苯,正己烷,通过加水稀释得到水分而获得水溶液,得到萃取液的方法; 在用水:乙腈:甲醇= 70-95%:25蒸发在所述第二过程中获得的水溶液获得的操作层析物质后,在水或甲醇中重结晶获得4-羟基-5-甲基-3 [2H-嘌呤酮的方法 -30%复合液体作为洗脱溶液,使用色香素RP-18柱。
    • 24. 发明授权
    • 4-히드록시-5-메틸-3 2H-퓨라논을함유하는피부미백용조성물
    • 包含4-羟基-5-甲基-3(2H) - 呋喃酮的白色白色组合物
    • KR100120277B1
    • 1997-11-04
    • KR1019940008411
    • 1994-04-21
    • 주식회사 아모레퍼시픽그룹
    • 부용출전체옥이병곤
    • A61K8/49A61Q19/02
    • The composition for whitening skin is produced by the following method. (1) obtain the extraction liquid by adding polar solvent to bark and velamen of pine tree and. (2) add water to the concentration extraction liquid to dissolve and then start sharing with adding the same volume of normal hexane. (3) repeatedly extract three times the obtained water layer with normal butanol, and obtain the extract after drying the obtained normal butanol layer in vacuum state. (4) Apply the extract with chromatorgrahy method using water-acetonitrile-methanol as eluent. (5) Vaporize the eluent, recrystallize in methanol and obtain 4-hydroxy-5-methyl-3[2H -furanone which is then applied to the product for whitening skin.
    • 通过以下方法制造美白皮肤用组合物。 (1)通过向松树的树皮和木棉中加入极性溶剂获得提取液。 (2)加水至浓缩液中溶解,然后开始加入相同体积正己烷。 (3)用正丁醇反复提取三次得到的水层,并在真空状态下干燥得到的正丁醇层后得到提取物。 (4)使用水 - 乙腈 - 甲醇作为洗脱液,使用Chromatorgrahy法提取提取物。 (5)将洗脱液蒸发,在甲醇中重结晶,得到4-羟基-5-甲基-3H-呋喃酮,然后将其加到产品上以使皮肤变白。