发明名称 |
Process for preparing high purity corosolic acid and high purity ursolic acid |
摘要 |
According to the present invention, there is provided a process for preparing corosolic acid comprising the steps of (1) dissolving crude extract of Japanese loquat leaves in alkali and aqueous alcohol and (2) applying the solution to a nonpolar adsorption resin to obtain corosolic acid. |
申请公布号 |
EP1980569(A1) |
申请公布日期 |
2008.10.15 |
申请号 |
EP20070124096 |
申请日期 |
2007.12.27 |
申请人 |
KENKO CORPORATION;TOKIWA PHYTOCHEMICAL CO., LTD. |
发明人 |
YOSHIDA, NAOAKI;MORI, CHIHIRO;SASAKI, TSUTOMU |
分类号 |
C07J63/00;A23L1/30;A61K36/73;C07C62/32 |
主分类号 |
C07J63/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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