- 著者
- 門田 重利 高森 靖 / 菊池 徹 田中 謙 浴本 久雄 Hisao EKIMOTO
- 出版者
- The Pharmaceutical Society of Japan
- 雑誌
- Chemical and Pharmaceutical Bulletin (ISSN:00092363)
- 巻号頁・発行日
- vol.38, no.10, pp.2687-2697, 1990-10-25 (Released:2008-03-31)
- 参考文献数
- 22
- 被引用文献数
- 28 54
Woodfruticosin (woodfordin C), a new cyclic dimeric hydrolyzable tannin having an inhibitory activity toward deoxyribonucleic acid (DNA) topoisomerase II, has been isolated from the leaves of Woodfordia fruticosa KURZ (Lythraceae) along with three known flavonol glycosides and three known flavonol glycoside gallates. The structure of woodfruticosin (woodfordin C) was determined by the use of two-dimensional nuclear magnetic resonance (2-D NMR) spectroscopy including heteronuclear multiple quantum coherence (HMQC) and heteronuclear mucltiple bond connectivity (HMBC) techniques. Detailed analyses of the proton and carbon-13 NMR (1H-and 13C-NMR) spectra of six known flavonoids were performed.
1 0 0 0 OA コシアブラの葉の成分に関する研究
- 著者
- 北島 潤一 高森 靖 田中 靖子
- 出版者
- 公益社団法人日本薬学会
- 雑誌
- 藥學雜誌 (ISSN:00316903)
- 巻号頁・発行日
- vol.109, no.3, pp.188-191, 1989-03-25
- 被引用文献数
- 1
In fresh leaves of Acanthopanax sciadophylloides FR. et SAV. collected in June, the following substances were identified : (-)-β-caryophyllene, trans-β-farnesene, phytol, 1-dotriacontanol, taraxerol, a mixture of stigmasterol and β-sitosterol, trans-p-coumaric acid, trans-p-coumaric acid methylester, afzerin, kaemferitrin, kaempferol 7-O-α-L-rhamnopyranoside, 3-O-β-D-galactopyranosyl kaempferol 7-O-α-L-rhamnopyranoside and quercetin 3,7-O-bis-α-L-rhamnopyranoside. On the other hand, from the fresh leaves collected in August, trans-p-coumaric acid and kaempferol were obtained as aromatic compounds, but flavonoid glycosides were not detected. It is interesting that the constituents of these leaves were quite different between June and August.