
%0 Journal Article
%A Elix, John A. 
%A Wardlaw, Judith H. 
%T Lusitanic Acid, Peristictic Acid and Verrucigeric Acid. Three New &#946;-Orcinol Depsidones from the Lichens <emph type="2">Relicina sydneyensis</emph> and <emph type="2">Xanthoparmelia verrucigera</emph>
%J Australian Journal of Chemistry
%D 2000/12/22
%V 53
%N 9
%P 815-818
%K Depsidone; stictic acid; chemosyndrome; lichen; chromatography; mass spectrometry; n.m.r.
%R https://doi.org/10.1071/CH00121
%U https://www.publish.csiro.au/paper/CH00121 
%X Three new &#946;-orcinol depsidones belonging to the stictic acid chemosyndrome, namely peristictic acid (1,4-dihydroxy-10-methoxy-5,8-dimethyl-3,7-dioxo-1,3-dihydro-7H-isobenzofuro&#91;4,5-b&#93;&#91;1,4&#93;benzodioxepin-11-carboxylic acid) (9), lusitanic acid (methyl 1,4-dihydroxy-10-methoxy-5,8-dimethyl-3,7-dioxo-1,3-dihydro-7H-isobenzofuro&#91;4,5-b&#93;&#91;1,4&#93;benzodioxepin-11-carboxylate) (10) and verrucigeric acid (1,4-dihydroxy-11-hydroxymethyl-10-methoxy-5,8-dimethyl-3,7-dioxo-1,3-dihydro-7H-isobenzofuro&#91;4,5-b&#93;&#91;1,4&#93;benzodioxepin-1,11-diyl hydrogen orthoacetate) (14) have been identified in the lichens Relicina sydneyensis and Xanthoparmelia verrucigera respectively. The structure of the new depsidones followed from a combination of partial syntheses, chromatographic comparisons and spectroscopic data. 
