化学
丹宁
立体化学
可水解单宁
单体
核磁共振波谱
水解
多酚
生物化学
有机化学
食品科学
聚合物
抗氧化剂
作者
Takashi Yoshida,Yasuhiko Maruyama,Takuo Okuda,M. Usman Memon,Tetsuro Shingu
出处
期刊:Chemical & Pharmaceutical Bulletin
[Pharmaceutical Society of Japan]
日期:1982-01-01
卷期号:30 (11): 4245-4248
被引量:18
摘要
Two new dimeric ellagitannins, gemin B (2) and C (3), and a monomeric tannin, gemin D (4), have been isolated from Geum japonicum. Their structures were elucidated on the basis of NMR analysis and partial hydrolysis. Gemin D was isolated also from Camellia japonica.
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