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Title

A new pregnane glycoside from Gomphocarpus fruticosus growing in Egypt.

Authors

Marzouk, Amani M.; Osman, Samir M.; Gohar, Ahmed A.

Abstract

Phytochemical investigation ofGomphocarpus 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 inG.fruticosusand the cardenolides uzarigenin, gomphoside and calotropin.

Publication

Natural Product Research, 2016, Vol 30, Issue 9, p1060

ISSN

1478-6419

Publication type

Academic Journal

DOI

10.1080/14786419.2015.1107059

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