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Pentacyclic Triterpenoid Saponins from Silene viscidula

✍ Scribed by Wei Xu; Jia-Mei Wu; Zheng Zhu; Yi Sha; Jin Fang; Yu-Shan Li

Publisher
John Wiley and Sons
Year
2010
Tongue
German
Weight
190 KB
Volume
93
Category
Article
ISSN
0018-019X

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✦ Synopsis

Three new pentacyclic triterpenoid saponins, viscidulosides A and B (1 and 2, resp.), and silenoviscoside D (3), were isolated from the roots of Silene viscidula, together with two known saponins, sinocrassulosides VIII and IX (4 and 5, resp.). Their structures were elucidated by spectroscopic data and chemical methods. Compounds 1/2 and 4/5 were two inseparable mixtures, which are glycosides of quillaic acid whose fucose residue is acylated by (E)-or (Z)-4-methoxycinnamic acid.

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## Abstract Four new triterpenoid saponins, named scheffarboside A – D (**1**–**4**), along with five known saponins were isolated from the stems of __Schefflera arboricola.__ The structures of the four new saponins were determined as 3‐__O__‐(__O‐β__‐glucuronopyranosyl‐(1β€…β†’β€…3)‐__O‐α__‐rhamnopyrano