
%0 Journal Article
%A Elix, JA 
%A Engkaninan, U 
%T 3-Hydroxyphysodic acid. Chemical corroboration of the structure of this lichen depsidone
%J Australian Journal of Chemistry
%D 1976/12/01
%V 29
%N 12
%P 2693-2699
%K 
%R https://doi.org/10.1071/CH9762693
%U https://www.publish.csiro.au/paper/CH9762693 
%X The published structure of the lichen depsidone ?physodol? has been shown to be incorrect. This compound is in fact identical with 3- hydroxyphysodic acid (2) (1?-carboxy-2?,3,4-trihydroxy-6-(2?- oxoheptyl)-6?-pentyldepsidone).     Chemical evidence is presented to confirm the isocoumarin structure (10) for that of the key decarboxy anhydro derivative obtained by degradation of 3-hydroxyphysodic acid, and thus to disprove the alternative 5-hydroxy formulation suggested for this compound. 
