Cycloartane triterpene glycosides from Astragalus trigonus

Cycloartane triterpene glycosides from Astragalus trigonus

Three new cycloartane glycosides, trigonoside I, II and III, and the known astragalosides I and II were isolated from the roots of Astragalus trigonus. The structures of the new glycosides were totally elucidated by high field (600 MHz) NMR analyses as cycloastragenol-6- O- β-xylopyranoside, cycloas...

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Veröffentlicht in:Phytochemistry (Oxford) 1995-12, Vol.40 (6), p.1755-1760
Hauptverfasser: Gariboldi, Pierluigi, Pelizzoni, Francesca, Tatò, Marco, Verotta, Luisella, El-Sebakhy, Nadia, Asaad, Aya M., Abdallah, Rokia M., Toaima, Soad M.
Format: Artikel
Sprache:eng
Schlagworte:
Biological and medical sciences
Biotechnology
Carbohydrate Conformation
Carbohydrate Sequence
Chemical constitution
Fabaceae
Fundamental and applied biological sciences. Psychology
Magnetic Resonance Spectroscopy
Models, Molecular
Molecular Sequence Data
Plant physiology and development
Plants, Medicinal
Saponins - chemistry
Saponins - isolation & purification
Triterpenes - chemistry
Triterpenes - isolation & purification
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Zusammenfassung:Three new cycloartane glycosides, trigonoside I, II and III, and the known astragalosides I and II were isolated from the roots of Astragalus trigonus. The structures of the new glycosides were totally elucidated by high field (600 MHz) NMR analyses as cycloastragenol-6- O- β-xylopyranoside, cycloastragenol-3- O-[ α-l-arabinopyranosyl(1 → 2)- β-d-xylopyranosyl]-6- O- β- d-xylopyranoside and cycloastragenol-3- O-[ α-l-arabinopyranosyl(1 → 2)- β-d-(3- O-acetyl)-xylopyranosyl]-6- O- β-d-xylopyranoside.
ISSN:0031-9422
1873-3700
DOI:10.1016/0031-9422(95)00544-H