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Planta Med 1991; 57(5): 488-491
DOI: 10.1055/s-2006-960179
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© Georg Thieme Verlag Stuttgart · New York

Auriculatin 4′-O-Glucoside: A New Prenylated Isoflavone Glycoside from Erythrina eriotricha 1

A. E. Nkengfack2 , M. Meyer3 , M. S. Tempesta4 , Z. T. Fomum2
  • 2Department of Organic Chemistry, University of Yaounde, BP 812 Yaounde, Cameroun
  • 3Laboratoire de Chimie du Museum National d'Histoire Naturelle, 63 Rue Buffon, F-75231 Paris, France
  • 4Department of Chemistry, University of Missouri, Columbia, Missouri 65211, U.S.A.
1 Part 19 in the series “Erythrina studies”. For part 18 see Ref. (11)
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Publication History

1990

Publication Date:
05 January 2007 (online)

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Abstract

In addition to known compounds, sigmoidin C and 8-(3,3-dimethylallyl)-erythrinin C, also called senegalensin, a new isoflavone glycoside designated auriculatin 4′-O-glucoside was isolated from the chloroform extract of the stem bark of Erythrina eriotricha. Its structure was elucidated as 7,6-(2′″,2′″-dimethyl-2 H-pyrano)-2′,5-dihydroxy-8-(3,3-dimethylallyl)-isoflavone 4′-O-β-D-glucoside on the basis of spectroscopic methods and chemical evidence.

Key words

Erythrina eriotricha - Leguminosae - auriculatin 4′-O-glucoside - sigmoidin C - 8-(3,3-dimethylallyl)-erythrinin C