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Original Article

Four new trace phenolic glycosides from Curculigo orchioides

Original article

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Pages 43-50 | Received 12 Aug 2009, Accepted 13 Oct 2009, Published online: 01 Feb 2010
 

Abstract

Four new trace phenolic glycosides named orcinosides D (1), E (2), F (3), and G (4) were isolated from the rhizomes of Curculigo orchioides Gaertn. Based on comprehensive spectroscopic analyses including IR, FAB-MS, HR-ESI-MS, 1D- and 2D NMR (HSQC, HMBC), their structures were elucidated as orcinol-1-O-β-d-xylopyranoside (1), orcinol-1-O-β-d-apiofuranosyl-(1 → 2)-β-d-glucopyranoside (2), orcinol-3-O-β-d-apiofuranosyl-1-O-β-d-glucopyranoside (3), and 1-O-β-d-glucopyranosyl-4-ethoxyl-3-hydroxymethylphenol (4).

Acknowledgements

This work was financially supported by the project of Yunnan Science and Technology Plan (No. 2008IF011), the major projects of new drugs development of China (No. 2009ZX09102-126), the 973 project of the Ministry of Sciences and Technology (No. 2009CB941300) and the Open Fund of the State Key Laboratory in KIB (No. 0807E31211). The authors are grateful to the members of the staff of analytical group of State Key Laboratory of Phytochemistry and Plant Resources, West China, Kunming Institute of Botany, Chinese Academy of Sciences, for the measurements of all spectra.

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