Macrophyllosaponin E: a novel compound from the roots of Astragalus. oleifolius |
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Authors: | Bedir E Calis I Khan I A |
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Affiliation: | Hacettepe University, Faculty of Pharmacy, Department of Pharmacognosy, Ankara, Turkey. |
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Abstract: | Macrophyllosaponin E, a novel cycloartane-type triterpene, has been isolated from the roots of Astragalus oleifolius. The structure elucidation of the compound was achieved by a combination of one- and two-dimensional NMR techniques [1H-1H-correlation spectroscopy (COSY), 1H-13C-heteronuclear multiple guantum correlation spectroscopy (HMQC), and 1H-13C-heteronuclear multiple-bond correlation spectroscopy (HMBC)l and high resolution electrospray ionization Fourier transformation mass spectrometry (HR-ESI-FT-MS). |
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