
%0 Journal Article
%A Jefferies, PR 
%A Retallack, RW 
%T The chemistry of the Euphorbiaceae. XX. Further compounds from <I>Beyeria leschenaultii</I> 12&#946;,17-Dihydroxy-16&#945;-(&#8211;)-kauran-19-oic acid
%J Australian Journal of Chemistry
%D 1968/08/01
%V 21
%N 8
%P 2085-2093
%K 
%R https://doi.org/10.1071/CH9682085
%U https://www.publish.csiro.au/paper/CH9682085 
%X The title substance was separated from the plant as its methyl ester (IV) and its structure established, partly by conversion into 16&#945;-(-)-kaurane-17,19-dioic acid (VIII) and by other chemical and N.M.R. evidence which locates the secondary hydroxyl. Four known kauranes and a flavone were also isolated from the plant. The conformation of ring c in the 12-oxygenated compounds is discussed. 
