
%0 Journal Article
%A Henrick, CA 
%A Jefferies, PR 
%T The chemistry of the Euphorbiaceae. XV. Further diterpenes from <I>Ricinocarpus stylosus</I>: 1a, 19-diliydroxy-16a-(&#8211;)-kauran-17-oic acid
%J Australian Journal of Chemistry
%D 1965/12/01
%V 18
%N 12
%P 2005-2013
%K 
%R https://doi.org/10.1071/CH9652005
%U https://www.publish.csiro.au/paper/CH9652005 
%X Another two diterpenes based on the (-)-kaurane skeleton have been isolated from Ricinocarpus stylosus. One is the known 16,17-dihydroxy-16&#946;-(-)-kauran-19-oic acid (IIb) and the other has been shown to be l&#945;,l9-dihydroxy-16&#945;-(-)-kauran-17-oic acid (IVa). The N.M.R. spectra of various kaurane derivatives in chloroform and benzene solutions are compared. 
