著者

布施 淳一 金森 久幸 坂本 征則 矢原 正治

出版者

日本生薬学会

雑誌

生薬学雑誌 (ISSN:13403443)

巻号頁・発行日

vol.48, no.4, pp.p307-311, 1994-12

被引用文献数

2

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Five flavonol glycosides, quercitrin (I), isoquercitrin (II), afzerin (III), hyperin (IV) and rutin (V) were isolated from the terrestrial part of Houttuynia cordata collected during the flowering season. The quantitative analysis of the five flavonol glycosides in Houttuynia cordata by high-performance liquid chromatography (HPLC) revealed the following results. (1) All the leaves, spikes and stems contained these five flavonol glycosides, and the content was the highest in leaves. (2) The main flavonol glycosides in spikes were I and IV. (3) The flavonol glycoside contents in leaves before and during the flowering season were about the same.

著者

雷 振環 矢原 正治 台 宝山 田 瑞華 滝口 靖憲 野原 稔弘

出版者

日本生薬学会

雑誌

Natural medicines = 生薬學雜誌 (ISSN:13403443)

巻号頁・発行日

vol.49, no.4, pp.475-477, 1995

参考文献数

8

被引用文献数

2

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From the leaves of Poacynum hendersonii, six phenolic compounds were isolated and identified as quercetin, quercetin 3-O-glucoside, quercetin 3-O-sophoroside, isorhamnetin 3-O-glucoside, syringaresinol and (+)-pinoresinol 4-O-glucoside, by direct comparison with the authentic samples.

著者

新宮 一司 古澤 世理子 丸林 信洋 上田 幾彦 矢原 正治 野原 稔弘

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.2866-2867, 1990-10-25 (Released:2008-03-31)

参考文献数

9

被引用文献数

4 7

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The structure of a new withanolide, (17R, 20R, 22R, 25R)-21, 24R-epoxy-27-methoxy-1-oxowitha-2, 5-dienolide, isolated from the methanolic extract of the fresh aerial parts of Datura metel L. (Solanaceae), was established by X-ray analysis.

著者

矢原 正治 金城 順英 下川 隆志 野原 稔弘 山原 條二 千坂 武司

出版者

天然有機化合物討論会

雑誌

天然有機化合物討論会講演要旨集

巻号頁・発行日

no.27, pp.726-733, 1985-09-07

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We have examined the constituents of three crude drugs showing an antihypercholesteremic activity. 1) Daemonorops draco --- D-7 was obtained as an active substance. It was further separated into two compounds (D-7-I,II) being the isomers each other and their substances were deduced to be the deoxy-proanthocyanidins by the spectral data. 2) Caesalpinia sappan --- Total nineteen compounds relating to brazilin were isolated and the chemical structures of fourteen compounds among them were discussed by the spectroscopic means. SO-k, g,e were the 3-benzyl-chroman-4-one derivatives; SO-i,b,c were shown to be the first examples of the 3-benzyl-chroman-4-ol derivatives and assumed to be the key-intermediates on the biogenetic route of brazilin; All of SO-j,p,SLC-b,c,d presented new novel framework-models among the naturally occurring compounds. SO-j was suggested to be produced from SO-i,b,c by oxidative coupling, SO-p was presumed to be derived from brazilin by oxidative fission. SLC-b,c,d were considered to be originated from brazilin. SLC-b was effective for antihypercholesteremia. 3) Dalbergia odorifera --- Five aromatic compounds, DO-I-V, were isolated from the active fraction and their structures were revealed to be the unique bi-isoflavanoids by the various spectral data.

著者

矢原 正治

出版者

九州大学

巻号頁・発行日

1978

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