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Two New Spirostanol Saponins from Reineckia carnea
Author(s) -
Zhang ZhongQuan,
Chen JianChao,
Zhang XianMing,
Li ZhongRong,
Qiu MingHua
Publication year - 2008
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.200890162
Subject(s) - chemistry , stereochemistry , diol , spectral analysis , saponin , organic chemistry , medicine , physics , alternative medicine , pathology , quantum mechanics , spectroscopy
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.