A benzil and isoflavone from Iris tenuifolia
| Autor: | Hina Siddiqui, Sumaira Hareem, Shazia Anjum, Shamsher Ali, Muhammad Iqbal Choudhary, Atta-ur-Rahman, Mudassir Israr Zaidi |
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| Rok vydání: | 2007 |
| Předmět: |
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Molecular Magnetic Resonance Spectroscopy Chemistry DPPH Stereochemistry Iris Plant Iris tenuifolia Stereoisomerism Plant Science General Medicine Horticulture Crystallography X-Ray Biochemistry Isoflavones Phenylglyoxal Antioxidants Iridaceae chemistry.chemical_compound Inhibitory Concentration 50 Isoflavone Derivatives X-ray crystallography Benzil Molecular Biology Flavanone Two-dimensional nuclear magnetic resonance spectroscopy |
| Zdroj: | Phytochemistry. 69(9) |
| ISSN: | 0031-9422 |
| Popis: | Two compounds, tenuifodione (1) and tenuifone (2), and 12 known compounds, izalpinin (3), alpinone (4), arborinone (5), irilin B (6), irisone A (7), irisone B (8), betavulgarin (9), β-sitosterol (10), 5,7-dihydroxy-2′,6-dimethoxyisoflavone (11), 2′,5-dihdroxy-6,7-methylenedioxy flavanone (12), irisoid A (13) and ethyl-β- d -glucopyranoside (14) were isolated from the whole plant of Iris tenuifolia Pall. All compounds, except 12, were isolated for the first time from this plant. Compounds 2, 3 and 11 have shown a considerable DPPH radical scavenging activity. Structures of these compounds were identified on the basis of spectroscopic techniques, including 2D NMR. Compounds 3, 5 and 7 were also subjected to single-crystal X-ray diffraction analysis and their structures were unambiguously deduced. |
| Databáze: | OpenAIRE |
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