Chemical and Pharmaceutical Bulletin
Online ISSN : 1347-5223
Print ISSN : 0009-2363
ISSN-L : 0009-2363
Studies on the Constituents of the Root of Polygala tenuifolia WILLDENOW. I. Isolation of Saponins and the Structures of Onjisaponins G and F
SEIICHI SAKUMAJUNZO SHOJI
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Keywords: Polygalaceae
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1981 Volume 29 Issue 9 Pages 2431-2441

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Abstract

Seven triterpenoidal saponins, onjisaponins A, B, C, D, E, F, and G, were isolated from the roots of Polygala tenuifolia WILLDENOW. Among these saponins, the structures of onjisaponins G (1) and F (2) were determined on the basis of spectral and chemical evidence as presenegenin-(3)-β-D-glucopyranosido-(28)-2-O-{[β-D-apio-D-furanosyl (1→3)]-[β-D-xylopyranosyl (1→4)]-α-L-rhamnopyranosyl}-4-O-(3', 4', 5'-trimethoxycinnamoyl)-β-D-fucopyranoside and presenegenin-(3)-β-D-glucopyranosido-(28)-2-O-{[β-D-apio-D-furanosyl-(1→3)] [α-L-arabinopyranosyl (1→3)-β-D-xylopyranosyl (1→4)]-α-L-rhamnopyranosyl}-4-O-(3', 4', 5'-trimethoxycinnamoyl)-β-D-fucopyranoside, respectively.

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