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 |
US8101795(B2) |
申请公布日期 |
2012.01.24 |
申请号 |
US20070005343 |
申请日期 |
2007.12.27 |
申请人 |
YOSHIDA NAOAKI;MORI CHIHIRO;SASAKI TSUTOMU;KENKO CORPORATION;TOKIWA PHYTOCHEMICAL CO., LTD. |
发明人 |
YOSHIDA NAOAKI;MORI CHIHIRO;SASAKI TSUTOMU |
分类号 |
C07C61/28;A61K31/20 |
主分类号 |
C07C61/28 |
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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