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Two New Spirostanol Saponins from Reineckia carnea

✍ Scribed by Zhong-Quan Zhang; Jian-Chao Chen; Xian-Ming Zhang; Zhong-Rong Li; Ming-Hua Qiu

Publisher
John Wiley and Sons
Year
2008
Tongue
German
Weight
189 KB
Volume
91
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

Two new spirostanol saponins, (1__β__,3__β__,5__β__,25__S__)‐spirostan‐1,3‐diol 1‐(β‐D‐xylopyranoside) (1) and (1__β__,3__β__,5__β__,25__S__)‐spirostan‐1,3‐diol 1‐[α‐L‐rhamnopyranosyl‐(1→2)‐β‐D‐fucopyranoside] (2), along with two known compounds, (1__β__,3__β__,5__β__,25__S__)‐spirostan‐1,3‐diol 1‐[α‐L‐rhamnopyranosyl‐(1→2)‐β‐D‐xylopyranoside] (3) and (1__β__,3__β__,4__β__,5__β__,25__S__)‐spirostan‐1,3,4,5‐tetrol 5‐(β‐D‐glucopyranoside) (4) were isolated from the whole plant of Reineckia carnea. The structures of the new steroids were determined by detailed analysis of their 1D‐ and 2D‐NMR spectra and chemical methods, and by comparison with spectral data of known compounds. Compounds 3 and 4 were isolated from the genus Reineckia for the first time.

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