
%0 Journal Article
%A Elix, JA 
%A Chester, DO 
%A Wardlaw, JH 
%A Wilkins, AL 
%T The Identification and Synthesis of Two New &#946;-Orcinol <I>para</I>-Depsides in the Lichen <I>Pseudocyphellaria norvegica</I>
%J Australian Journal of Chemistry
%D 1990/01/01
%V 43
%N 1
%P 191-196
%K 
%R https://doi.org/10.1071/CH9900191
%U https://www.publish.csiro.au/paper/CH9900191 
%X The new lichen depsides, 2&#8242;-O-methylnorbarbatic acid (9) and 2&#8242;-O-methylnorobtusatic acid (12) have been detected in Pseudocyphellaria norvegica and the structures confirmed by total synthesis. In addition, the known depsides 4-O-demethylbarbatic acid (3), barbatic acid (4), diffractaic acid (5), 4-O-demethyldiffractaic acid (6), methyl 4-O-demethylbarbatate (7), methyl barbatate (8) and norobtusatic acid (II) were shown in this lichen species. 
