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Three New Triterpene Saponins from Hemsleya chinensis

✍ Scribed by Zhen-Jie Li; Jian-Chao Chen; Yun Sun; Na-Li Song; Bao-Hui Cheng; Lu Lu; Wei-Guang Ma; Lin Zhou; Xian-Min Zhang; Zhong-Rong Li; Ming-Hua Qiu

Publisher
John Wiley and Sons
Year
2009
Tongue
German
Weight
188 KB
Volume
92
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Three new triterpenoid saponins, xuedanglycosides A–C (1–3, resp.), along with six known ones, were isolated from the rhizomes of Hemsleya chinensis. By detailed analysis of the NMR spectra, by chemical methods, and by comparison with spectral data of known compounds, the structures of new compounds were determined to be 16__α__,23__α__‐epoxy‐2__β__,3__α__,20__β__‐trihydroxy‐10__α__,23__α__‐cucurbita‐5,24‐dien‐11‐on‐2‐yl β‐D‐glucopyranoside (1), 2__β__,3__α__,16__α__,20__β__‐tetrahydroxycucurbita‐5,25‐diene‐11,22‐dion‐2‐yl β‐D‐glucopyranoside (2), and oleanolic acid 28‐O‐β‐xylopyranosyl‐(1→6)‐O‐β‐glucopyranoside (3). In addition, hemslecin A 2‐O‐β‐D‐glucopyranoside (6), hemsamabilinin B (7), and hemslonin A (9) were obtained for the first time from this plant.

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