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
    • 8. 发明申请
    • A MASS PRODUCTION METHOD OF BRAZILEIN FROM CAESALPINIA SAPPAN L
    • 豌豆OF OF A A A。。。。。。。。。。。。。。。。
    • WO2007066926A1
    • 2007-06-14
    • PCT/KR2006/005082
    • 2006-11-29
    • KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYYANG, Hyun OkCHOI, Yeon Hee
    • YANG, Hyun OkCHOI, Yeon Hee
    • C07D311/78C07D311/00
    • C07D311/94Y02P20/544
    • The present invention relates to a mass -production method of brazilein from Caesalpinia sappan L. , more precisely a mass-production method of brazilein from Caesalpinia sappan L. which comprises the steps of 1) preparing an extract from Caesalpinia sappan L. by using water, alcohol or a mixture of the two; 2) preparing a crude crystal by concentrating the extract of step 1) ; 3) dissolving the crude crystal of step 2) in alcohol; 4) concentrating the solution of step 3) ; and 5) re- crystallizing the concentrated solution of step 4) . According to the method of the invention, brazilein can be mass-produced from Caesalpinia sappan L. with high purity without column chromatography which has been necessarily performed according to the conventional methods, and thus the method of the invention does not need expensive equipments such as column chromatography, supercritical fluid extractor, HPLC, etc., suggesting that the method is efficient for mass -production of brazilein and industrially applicable.
    • 本发明涉及来自豌豆an an of of of a a a a a a a ction ction water water water water water water water water water water water water water water water water water water water water water water water water water water water water water water water water water ,酒精或两者的混合物; 2)通过浓缩步骤1)的提取物制备粗晶体; 3)将步骤2)的粗晶体溶于醇中; 4)浓缩步骤3)的溶液; 和5)使步骤4)的浓缩溶液重结晶。 根据本发明的方法,可以根据常规方法,必须按照常规方法进行,高纯度的不含柱色谱的Caesalpinia sappan L.可以大量生产丁氯苯酚,因此本发明的方法不需要昂贵的设备,例如 柱色谱,超临界流体提取器,HPLC等,表明该方法对于大规模生产巴西林和工业上适用的方法是有效的。