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A Pair of New Nortriterpene Saponin Epimers from the Roots of Gypsophila oldhamiana

✍ Scribed by Jian-Guang Luo; Ling-Yi Kong

Publisher
John Wiley and Sons
Year
2006
Tongue
German
Weight
96 KB
Volume
89
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

A pair of new oleanane‐type nortriterpene saponin epimers, neogypsoside A (1) and B (2) (Fig. 1) with neogypsogenin A (3) and neogypsogenin B (4) as the two new aglycons, as well as the two known triterpene saponins 5 and 6 (Fig. 1), were isolated from the roots of Gypsophila oldhamiana. Their structures were determined by analysis of their NMR data. A possible biogenetic pathway to the nortriterpene saponins 1 and 2 is proposed (Scheme 2).

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