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Reproductive Techniques for Ovarian Monitoring and Control in Amphibians
Published on: May 12, 2019
A new pregnane glycoside from Gomphocarpus fruticosus growing in Egypt
Amani M Marzouk1, Samir M Osman2, Ahmed A Gohar1
1a Faculty of Pharmacy, Department of Pharmacognosy , Mansoura University , Mansoura , Egypt.
Abstract:
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 3β-taraxerol, 3β-taraxerol acetate and betulinic acid, which are identified for the first time in G. fruticosus and the cardenolides uzarigenin, gomphoside and calotropin.
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