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A new oleanane glycoside from the roots of Astragalus caprinus
Author(s) -
MitaineOffer AnneClaire,
Miyamoto Tomofumi,
Semmar Nabil,
Jay Maurice,
LacailleDubois MarieAleth
Publication year - 2006
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1809
Subject(s) - oleanane , chemistry , triterpene , saponin , two dimensional nuclear magnetic resonance spectroscopy , glycoside , stereochemistry , astragalus , heteronuclear single quantum coherence spectroscopy , astragaloside , traditional medicine , organic chemistry , traditional chinese medicine , medicine , alternative medicine , high performance liquid chromatography , pathology
A novel oleanane‐type triterpene saponin (1) together with two known molecules, soyasapogenol B and astragaloside VIII were isolated from the roots of Astragalus caprinus . Their structural elucidation was performed mainly by 2D NMR techniques (COSY, TOCSY, NOESY, HSQC, HMBC) and mass spectrometry. Compound 1 was determined as 3‐ O ‐[α‐ L ‐rhamnopyranosyl‐(1 → 2)‐β‐ D ‐glucuronopyranosyl]‐22‐ O ‐β‐ D ‐apiofuranosyl‐soyasapogenol B. Copyright © 2006 John Wiley & Sons, Ltd.
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