
TY  - JOUR
A1  - Elix, John A. 
A1  - Wardlaw, Judith H. 
T1  - 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>
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 2000
VL  - 53
IS  - 9
SP  - 815
EP  - 818
KW  - Depsidone; stictic acid; chemosyndrome; lichen; chromatography; mass spectrometry; n.m.r.
UR  - https://doi.org/10.1071/CH00121 
N2  - 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. 
ER  -

