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Isoflavones from root bark of gorse

B. Russell, Graeme and Mohd. Sirat, Hasnah and R. W. Sutherland, Oliver (1990) Isoflavones from root bark of gorse. Phytochemistry, 29 (4). pp. 1287-1291. ISSN 0031-9422

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Abstract

Four novel complex isoflavones ulexones A, B, C and D, 5,7-dihydroxy-8-(3,3-dimethylallyl)-[6″,6″-dimethylpyrano (2″,3″:4′,3′)]-isoflavone, 5-hydroxy-[6″,6″-dimethylpyrano (2″,3″:4′,3′)] [6,6-dimethylpyrano (2,3:7,8)]-isoflavone, 5-hydroxy-[6″,6″-dimethylpyrano (2″,3″:4′,3′)] [1,2-dihydro-2-(1-hydroxy-1-methylethyl)-furano (4,5:7,8)]isoflavone, 5-hydroxy-[6″,6″-dimethylpyrano (2″,3″:4′,3′)] [6-methyl-6-(hydroxymethyl)-pyrano (2,3:7,8)]-isoflavone, have been isolated from the root bark of Ulex europaeus. Genistein and 5-O-methylgenistein were also present. Structures were established from the NMR spectra

Item Type:Article
Uncontrolled Keywords:Ulex europaeus; Leguminosae; root bark; isoflavones; 13C NMR; ulexones A–D; pyranoisoflavones; dehydrofuranoisoflavones; prenylated isoflavones; insect feeding deterrents
Subjects:Q Science > QD Chemistry
Divisions:Science
ID Code:2931
Deposited By: Ms Zalinda Shuratman
Deposited On:18 May 2007 02:19
Last Modified:01 Jun 2010 03:06

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