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Aperta - TÜBİTAK Açık Arşivi
Other literature type . 2010
License: CC BY
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Phytochemistry
Article . 2010 . Peer-reviewed
License: Elsevier TDM
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Triterpene glycosides from Astragalus icmadophilus

Authors: Ibrahim Horo; Erdal Bedir; PERRONE, ANGELA; Fevzi Oezgoekce; PIACENTE, Sonia; Ozgen Alankus Caliskan;

Triterpene glycosides from Astragalus icmadophilus

Abstract

Six cycloartane-type triterpene glycosides were isolated from Astragalus icmadophilus along with two known cycloartane-type glycosides, five known oleanane-type triterpene glycosides and one known flavonol glycoside. The structures of the six compounds were established as 3-O-[alpha-L-arabinopyranosyl-(1-->2)-O-3-acetoxy-alpha-L-arabinopyranosyl]-6-O-beta-D-glucopyranosyl-3beta,6alpha,16beta,24(S),25-pentahydroxycycloartane, 3-O-[alpha-L-rhamnopyranosyl-(1-->2)-O-alpha-L-arabinopyranosyl-(1-->2)-O-beta-D-xylopyranosyl]-6-O-beta-D-glucopyranosyl-3beta,6alpha,16beta,24(S),25-pentahydroxy cycloartane, 3-O-[alpha-L-arabinopyranosyl-(1-->2)-O-3,4-diacetoxy-alpha-L-arabinopyranosyl]-6-O-beta-D-glucopyranosyl-3beta,6alpha,16beta,24(S),25-pentahydroxycycloartane, 3-O-[alpha-L-arabinopyranosyl-(1-->2)-O-3-acetoxy-alpha-L-arabinopyranosyl]-6-O-beta-D-glucopyranosyl-3beta,6alpha,16beta,25-tetrahydroxy-20(R),24(S)-epoxycycloartane, 3-O-[alpha-L-arabinopyranosyl-(1-->2)-O-beta-D-xylopyranosyl]-6-O-beta-D-glucopyranosyl-3beta,6alpha,16beta,24alpha-tetrahydroxy-20(R),25-epoxycycloartane, 3-O-[alpha-L-rhamnopyranosyl-(1-->2)-O-alpha-L-arabinopyranosyl-(1-->2)-O-beta-D-xylopyranosyl]-6-O-beta-D-glucopyranosyl-3beta,6alpha,16beta,24alpha-tetrahydroxy-20(R),25-epoxycycloartane by the extensive use of 1D- and 2D-NMR experiments along with ESIMS and HRMS analysis. The first four compounds are cyclocanthogenin and cycloastragenol glycosides, whereas the last two are based on cyclocephalogenin as aglycone, more unusual in the plant kingdom, so far reported only from Astragalus spp.

Countries
Italy, Turkey
Keywords

Molecular Structure, Turkey, Saponin, Stereoisomerism, Astragalus Plant, 20,25-Epoxycycloartane glycosides, Triterpenes, Astragalus icmadophilus; Saponin; 20; 24-Epoxycycloartane glycosides; 25-Epoxycycloartane glycosides, Glycosides, Astragalus icmadophilus, Nuclear Magnetic Resonance, Biomolecular, 20,24-Epoxycycloartane glycosides

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
39
Top 10%
Top 10%
Top 10%
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