Two prenylated flavonoids from the stem bark of Erythrina burttii (original) (raw)

From the stem bark of Erythrina burttii, a new isoflavone, 5,2 0 ,4 0 -trihydroxy-7-methoxy-6-(3-methylbut-2-enyl)isoflavone (trivial name, 7-O-methylluteone) and a new flavanone, 5,7-dihydroxy-4 0 -methoxy-3 0 -(3-methylbutadienyl)-5 0 -(3-methylbut-2-enyl)flavanone (trivial name, burttinonedehydrate) along with three known isoflavonoids (8-prenylluteone, 3-O-methylcalopocarpin and genistein) were isolated. The structures were determined on the basis of spectroscopic evidence. #

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