new pregnane glycoside from Gomphocarpus fruticosus growing in Egypt

Phytochemical investigation of Gomphocarpus fruticosus (L.) Ait. of Egyptian origin afforded the new pregnane glycoside lineolon-3-O-[ β -D-oleandropyranosyl-(1–4)- β -D-cymaropyranosyl-(1–4)- β -D-cymaropyranoside], along with six known compounds. The structures of the isolated compounds were eluci...

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Bibliographic Details
Published in:Natural product research 2016-05, Vol.30 (9), p.1060-1067
Main Authors: Marzouk, Amani M, Osman, Samir M, Gohar, Ahmed A
Format: Article
Language:English
Subjects:
acetates
Apocynaceae
Apocynaceae - chemistry
Asclepiadoideae
betulinic acid
cardenolides
Egypt
glycosides
Glycosides - analysis
Glycosides - isolation & purification
Gomphocarpus fruticosus
gomphofruticososide
Magnetic Resonance Spectroscopy
Mass Spectrometry
Molecular Structure
nuclear magnetic resonance spectroscopy
Plant Extracts - analysis
pregnane glycosides
Pregnanes - analysis
Pregnanes - isolation & purification
spectral analysis
triterpenoids
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Summary:Phytochemical investigation of Gomphocarpus fruticosus (L.) Ait. of Egyptian origin afforded the new pregnane glycoside lineolon-3-O-[ β -D-oleandropyranosyl-(1–4)- β -D-cymaropyranosyl-(1–4)- β -D-cymaropyranoside], along with six known compounds. The structures of the isolated compounds were elucidated on the basis of extensive spectroscopic evidences derived from 1D, 2D NMR experiments, mass spectrometry and by comparing their physical and spectroscopic data to literature. These included the triterpenoids 3 β -taraxerol, 3 β -taraxerol acetate and betulinic acid, which are identified for the first time in G . fruticosus and the cardenolides uzarigenin, gomphoside and calotropin.
ISSN:1478-6427
1478-6419
1478-6427
DOI:10.1080/14786419.2015.1107059