| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5167766 | Phytochemistry | 2006 | 8 Pages |
Abstract
Six steroidal glycosides (1-6) were isolated from the aerial parts of Tribulus alatus Del. (Zygophyllaceae), together with one known cholestane, one spirostane, and six flavonol glycosides. Among them, 1 and 2 possess a furostane-type aglycone, 3 and 6 a cholestane structure, and 4 and 5 a spirostane skeleton. Their structural elucidation was accomplished by extensive spectroscopic methods including 1D (1H, 13C, 13C DEPT, TOCSY, ROESY) and 2D NMR experiments (DQF-COSY, HSQC, HMBC) as well as ESI-MS analysis.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Abeer Temraz, Omayma D. El Gindi, Hazem A. Kadry, Nunziatina De Tommasi, Alessandra Braca,