
TY  - JOUR
A1  - Henrick, CA 
A1  - Jefferies, PR 
T1  - The chemistry of the Euphorbiaceae. VII. The diterpenes of <I>Ricinocarpus stylosus</I> Diels
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1964
VL  - 17
IS  - 8
SP  - 915
EP  - 933
KW  - 
UR  - https://doi.org/10.1071/CH9640915 
N2  - The ether extract of Ricinocarpus stylosus has yielded polyalthic acid, three new naturally occurring flavonoid pigments and four new kauranoid diterpenes. The latter have been shown to be 16&#945;-(-)-kauran-l7,19-dioic acid (I; R,R' = CO2H), 19-hydroxy-16&#945;-(-)-kauran-17-oic acid (I; R = CH2OH, R' = CO2H), kauran-16&#945;,-17,19-triol (III; R,R' = CH2OH) and (-)-kaur-16-en-19-oic acid (IV; R = CO2H). The N.M.R. correlations of these diterpenoids are discussed. 
ER  -

