Wyerone acid

Acetylenes Heteromorphia trifoliata, Artemisia capillaris, Viciafaba Capillin, wyeronic acid (11) [45, 64]... 

Wyerone acid, W-00001 Wyerone epoxide, W-00002 Ximenynic acid, in 0-00175 Zoomaric acid, in H-00195... 

Most known P. have been discovered in the subfamily Papilionoideae of the Leguminoseae, followed by the Solanaceae, while many examples are known from other families P. do not belong structurally or biosynthetically to any one class of compounds. Many are isoflavonoids and several of these are pter-ocarpans, e.g. pisatin (see Pterocarpans), Phaseolin (see), Glyceollins (see). There are also terpenes (see Hg.2 see Ipomoeamarone), acetylenic compounds (see Safynol, Wyerone acid), a-hydroxydihydrochal-cones, stilbenes and polyketides (Fig. 1). 

Wyerone acid a Phytoaloexin (see). W.a. and its methyl ester wyerone are produced by the broad bean Vicia faba) in response to Botrylis infection. EDso against various Botrylis spp. 9-45 (ig/ml. Vicia also produces wyerone epoxide. [Hargreaves etal Phytochemistry IS (1976) 1119-1121]... 

Wyerone acid and related acetylenic compounds produced by Vicia faba in response to infection. The proportions of the various compounds depends on the infected tissue, species of infecting fungus, and time after initiation of synthesis. 

The synthesis of furan fatty esters containing a phenyl substituent at the 3- or 4-position of the furan ring was reported these involved methyl 9,10-epoxy-12-oxostearate as a key intermediate (85). The mono-, di-, and triacylglycerols of a Cj g furan fatty acid were prepared by chemical and enzymatic means (86). Furanoacety-lene phytoalexins (wyerone [19] and dihydro-wyerone [20]) were prepared in multigram quantities from furfural (87). The synthesis route of compound [19] is presented in Scheme 6. 

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