abyssinone V 4'-methyl ether 在
palladium on activated charcoal 氢气 作用下,
生成 (S)-5,7-Dihydroxy-2-[4-methoxy-3,5-bis-(3-methyl-butyl)-phenyl]-chroman-4-one
参考文献:
名称:
Two prenylated flavonoids from the stem bark of Erythrina burttii
摘要:
From the stem bark of Erythrina burttii, a new isoflavone, 5,2',4'-trihydroxy-7-methoxy-6-(3-methylbut-2-enyl)isoflavone (trivial name, 7-O-methylluteone) and a new flavanone, 5,7-dihydroxy-4'-methoxy-3'-(3-methylbutadienyl)-5'-(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. (C) 2003 Elsevier Science Ltd. All rights reserved.