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- Title
Two New Cholestane Bisdesmosides from Reineckia carnea.
- Authors
Zhong-Quan Zhang; Jian-Chao Chen; Lin Zhou; Ming-Hua Qiu
- Abstract
Three cholestane bisdesmosides, together with the corresponding aglycone, were isolated from the whole plant of Reineckia carnea. By detailed analysis of the 1D- and 2D-NMR spectra, chemical methods, and comparison with spectral data of known compounds, the structures were determined to be (1β,3β,16β,22S)-cholest-5-ene-1,3,16,22-tetrol (1), (1β,3β,16β,22S)-cholest-5-ene-1,3,16,22-tetrol 1,16-di(β-D-glucopyranoside) (2), (1β,3β,16β,22S)-cholest-5-ene-1,3,16,22-tetrol 1-[O-α-L-rhamnopyranosyl-(1→2)-β-D-glucopyranoside] 16-(β-D-glucopyranoside) (3), (1β,3β,16β,22S)-cholest-5-ene-1,3,16,22-tetrol 1-(β-D-glucopyranoside) 16-(3-O-acetyl-β-D-glucopyranoside) (4). Compounds 3 and 4 appeared to be new compounds, while compound 1 was isolated for the first from a natural source. Compound 2 was isolated from the genus Reineckia for the first time.
- Subjects
PERENNIALS; PERMACULTURE plants; NUCLEAR magnetic resonance spectroscopy; SPECTRUM analysis
- Publication
Helvetica Chimica Acta, 2007, Vol 90, Issue 3, p616
- ISSN
0018-019X
- Publication type
Article
- DOI
10.1002/hlca.200790063