Two new isoflavone derivatives from the roots of an Egyptian collection of Lotus polyphyllos

  • Nat Prod Res. 2006 Aug;20(10):922-6. doi: 10.1080/14786410500364627.
Maged S Abdel-Kader  1 ,  Masouda E Amer ,  Shoubin Tang ,  David G I Kingston
Affiliations
  • 1. Department of Pharmacognosy, Faculty of Pharmacy, King Saud University, P.O. Box 2457, Riyadh-11451, Saudi Arabia. [email protected]
PMID: 16854720 DOI: 10.1080/14786410500364627
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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