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Three Prenylated Isoflavones from Erythrina variegate |
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| Authors: | Keh-Feng Huang Yuh-Fang Yen |
| Abstract: | Two new prenylated isoflavones (erythrivarones A and B) were isolated from the stem bark of Erythrina variegata Linn, together with the known compound alpinumisoflavone (1). The structures of erythrivarones A and B were characterized as dihydroalpinumisoflavone (2) and 4′-hydroxy-6″,6″-dimethyldihydropyrano(2″,3″:5,6)]-6?,6?-dimethyldihydropyrano(2?,3?:7,8)]isoflavone (3), respectively, by means of spectroscopic analysis. |
| Keywords: | Erythrina variegate Linn Leguminosae Prenylated isoflavone Erythrivarone A Erythrivarone B |