化学
立体化学
原花青素
植物
多酚
生物
有机化学
抗氧化剂
作者
Takashi Yoshida,Katsumi Tanaka,Xinmin Chen,Takuo Okuda
出处
期刊:Phytochemistry
[Elsevier]
日期:1989-01-01
卷期号:28 (9): 2451-2454
被引量:34
标识
DOI:10.1016/s0031-9422(00)98003-8
摘要
Three new dimeric ellagitannins, laevigatins E, F and G, were isolated along with the known tannins, agrimonic acid B, sanguiin H-4, pedunculagin, agrimoniin, laevigatins B and D, from the polar fraction of the pericarp extract of Rosa laevigata. The structures of the new dimers, in which two glucose cores are linked through a dehydrodigalloyl group, were established by spectroscopic methods.
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