Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Studies on Rhubarb (Rhei Rhizoma). III. Stilbene Glycosides
野中 源一郎三並 正典西岡 五夫
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キーワード: d-catechin
ジャーナル フリー

1977 年 25 巻 9 号 p. 2300-2305

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抄録

A new stilbene glycoside (I), mp 258°, [α] D-86.0°, C27H26O12·1/2H2O, together with 3, 5, 4'-trihydroxystilbene 4'-O-β-D-glucopyranoside (II) and d-catechin (III), was isolated from the Japanese rhubarb, "Shinshu Daio", and the structure of I was established to be 3, 5, 4'-trihydroxystilbene 4'-O-β-D-(6''-O-galloyl)-glucopyranoside on the bases of chemical and spectral evidence. The occurrences of the stilbene glycosides (I, II) and III in commercial Chinese rhubarbs were examined by thin-layer chromatography, which revealed that almost all kinds of rhubarbs contained II and III while I appeared in the limited ones.

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© The Pharmaceutical Society of Japan
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