Article (Scientific journals)
Five new medicagenic acid saponins from Muraltia ononidifolia
Elbandy, M.; Miyamoto, T.; Delaude, Clément et al.
2002In Helvetica Chimica Acta, 85 (9), p. 2721-2728
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Abstract :
[en] Five new triterpene saponins 1-5 were isolated from the roots of Muraltia ononidifolia E. MEY along with the two known saponins 3-O-[O-beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucopyranosyl]medicagenic acid 28-[O-beta-D-xylopyranosyl-(l --> 4)-O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl] ester and 3-O-(beta-D-glucopyranosyl)medicagenic acid 28-[O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl] ester (medicagenic acid = (4alpha,2beta,3beta)-2,3-dihydroxyolean-12-ene-23,28-dioic acid). Their structures were elucidated mainly by spectroscopic experiments, including 2D-NMR techniques, as 3-O-(beta-D-glucopyranosyl)medicagenic acid 28-[O-beta-D-apiofuranosyl-(l --> 3)-O-beta-D-xylopyranosyl-(1 --> 4)-O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl] ester (1), 3-O-(beta-D-glucopyranosyl)medicagenic acid 28-{[O-beta-D-xylopyranosyl-(1 --> 4)-O-[beta-D-apiofuranosyl-(1 --> 3)]-O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl} ester (2), 3-O-[O-beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucopyranosyl]medicagenic acid 28-[O-beta-D-xylopyranosyl-(1 --> 4)-O-[beta-D-apiofuranosyl-(1 --> 3)]-O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl] ester (3), 3-O-[O-beta-D-glucopyranosyl-(1 --> 2)-beta-D-glucopyranosyl]medicagenic acid 28-[O-alpha-L-rhamnopyranosyl-(1 --> 2)-alpha-L-arabinopyranosyl] ester (4), and 3-O-[O-beta-glucopyranosyl-(1 --> 2)-beta-D-glucopyranosyl]medicagenic acid (5).
Disciplines :
Chemistry
Author, co-author :
Elbandy, M.
Miyamoto, T.
Delaude, Clément ;  Université de Liège - ULiège > Relations académiques et scientifiques (Sciences)
Lacaille-Dubois, M. A.
Language :
English
Title :
Five new medicagenic acid saponins from Muraltia ononidifolia
Publication date :
2002
Journal title :
Helvetica Chimica Acta
ISSN :
0018-019X
eISSN :
1522-2675
Publisher :
Wiley-Blackwell, United States
Volume :
85
Issue :
9
Pages :
2721-2728
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 July 2021

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