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Eudesmane-Type Sesquiterpene Derivatives from Saussurea conica

✍ Scribed by Cheng-Qi Fan; Zha-Jun Zhan; Hui Li; Jian-Min Yue

Publisher
John Wiley and Sons
Year
2004
Tongue
German
Weight
79 KB
Volume
87
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Four new eudesmane‐type sesquiterpene derivatives, 3__β__‐[(β‐D‐glucopyranosyl)oxy]‐11__α__H‐eudesm‐4(14)‐en‐12,8__β__‐olide (1), (3__β__)‐eudesma‐4(14),11(13)‐diene‐3,12‐diol (2), 3__β__‐[(β‐D‐glucopyranosyl)oxy]eudesma‐4(14),11(13)‐dien‐12‐ol (3), and 3__β__‐[(β‐D‐glucopyranosyl)oxy]eudesm‐4(14)‐en‐11‐ol (4), together with the known (3__β__)‐eudesm‐4(14)‐ene‐3,11‐diol (5) were isolated from Saussurea conica, and their structures were elucidated both spectroscopically and by chemical methods.

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New Eudesmane Sesquiterpene and Thiophene Derivatives from the Roots of Rhaponticum uniflorum. -The new sesquiterpene (I), named Rhaponticol, and some known thiophene derivatives are isolated from the roots of Rhaponticum uniflorum. Their structures are elucidated by spectroscopic techniques.