A bidesmosidic hederagenin hexasaccharide from the roots of Symphytum officinale

A new bidesmosidic triterpenoidal saponin 3-O-[β- d-glucopyranosyl -(1 → 4)-β- d-glucopyranosyl -(1 → 4)-α- l- -arabinopyranosyl ]- hederagenin-28-O-[α- l-rhamnopyranosyl -(1 → 4)-β- d-glucopyranosyl -(1 → 6)-β- d- glucopyranosyl ] ester, was isolated from the roots of Symphytum officinale. The stru...

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Bibliographic Details
Published in:Phytochemistry (Oxford) 1995-09, Vol.40 (1), p.213-218
Main Authors: Mohammad, Faryal Vali, Noorwala, Mushtaq, Ahmad, Viqar Uddin, Sener, Bilge
Format: Article
Language:English
Subjects:
Biological and medical sciences
Biotechnology
Carbohydrate Conformation
Carbohydrate Sequence
Chemical constitution
Fundamental and applied biological sciences. Psychology
Magnetic Resonance Spectroscopy
Mass Spectrometry
Molecular Sequence Data
Oleanolic Acid - analogs & derivatives
Oligosaccharides - chemistry
Oligosaccharides - isolation & purification
Plant physiology and development
Plant Roots
Plants, Medicinal
Saponins - chemistry
Saponins - isolation & purification
Spectrometry, Mass, Fast Atom Bombardment
Triterpenes - chemistry
Triterpenes - isolation & purification
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Summary:A new bidesmosidic triterpenoidal saponin 3-O-[β- d-glucopyranosyl -(1 → 4)-β- d-glucopyranosyl -(1 → 4)-α- l- -arabinopyranosyl ]- hederagenin-28-O-[α- l-rhamnopyranosyl -(1 → 4)-β- d-glucopyranosyl -(1 → 6)-β- d- glucopyranosyl ] ester, was isolated from the roots of Symphytum officinale. The structure was assigned by chemical methods and spectral analysis ( 1H, 13C, DEPT, NMR, EI-MS and FAB-MS) including 1H 1H COSY, 1H 13C COSY and HOHAHA. The prosapogenin of this saponin is also a new compound.
ISSN:0031-9422
1873-3700
DOI:10.1016/0031-9422(95)00246-4