Two new isoflavone derivatives from the roots of an Egyptian collection of Lotus polyphyllos.
NATURAL PRODUCT RESEARCH(2006)
Abstract
Investigation of the roots of Lotus polyphyllos Clarke resulted in the isolation of two new isoflavone derivatives; 4'-O-methylerythrinin C ( 3) and 4'-O-methyl-2 "-hydroxydihydroalpinumisoflavone ( 4). In addition, the three known isoflavone derivatives 4'-O-methylalpinumisoflavone ( 1) lupinalbin F ( 5), 4',7-dimethoxy-5-hydroxyisoflavone ( 6), and the phenylpropanoid ester tetracosyl p-coumarate ( 2) were also identified. The structures were determined from spectroscopic data.
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Key words
Lotus polyphyllos,Fabaceae,isoflavones,phenylpropanoids
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