Prenylated flavonoids of Erythrina lysistemon grown in Egypt |
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Authors: | el-Masry Sawsan Amer Masouda E Abdel-Kader Maged S Zaatout Hala H |
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Affiliation: | Department of Pharmacognosy, Faculty of Pharmacy, University of Alexandria, Alexandria 21215, Egypt |
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Abstract: | Three prenylated flavonoid derivatives; 5,7,4′-trihydroxy-8-(3-methylbut-2-enyl)-6-(2″-hydroxy-3″-methylbut-3″enyl) isoflavone (isoerysenegalensein E), 5,7,2′-trihydroxy-4′-methoxy-5′-(3″-methylbut-2″-enyl) isoflavanone (lysisteisoflavanone), 5, 4′-dihydroxy-6-(3-methylbut-2-enyl)-2″-hydroxyisopropyl dihydrofurano [4″,5″:8,7] isoflavone (isosenegalensin), together with the four known flavonoids abyssinone V-4′-methylether, alpinumisoflavone, wighteone and burttinone were isolated from the stem bark of Erythrina lysistemon Hutch. (Leguminosae). Structures were elucidated by spectroscopic methods. |
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Keywords: | Erythrina lysistemon Leguminosae Prenylated flavonoids Isoerysenegalensein E Lysisteisoflavanone Isosenegalensin |
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