
TY  - JOUR
A1  - Branch, G 
A1  - Burgess, D 
A1  - Dunstan, P 
A1  - Foo, L 
A1  - Green, G 
A1  - Mack, JG 
A1  - Ritchie, E 
A1  - Taylor, W 
T1  - Constituents of <I>Alphitonia</I> Species. III. Alphitexolide, a New Triterpene, and Other Extractives
JF  - Australian Journal of Chemistry
JO  - Aust. J. Chem.
Y1  - 1972
VL  - 25
IS  - 10
SP  - 2209
EP  - 2216
KW  - 
UR  - https://doi.org/10.1071/CH9722209 
N2  - The extractives of the barks and leaves of Alphitonia excelsa, A. petriei, and A. whitei, and of the wood, bark, and leaves of A. macrocarpa have been examined. Ceanothic, betulinic, and alphitolic acids were isolated from all species, but A. macrocarpa was exceptional in that its wood contained no benzylhydroxycoumarone derivative, characteristic of the other species, and its leaves gave a small yield of the alkaloid, adouetine X. From the bark of A. excelsa a new triterpene, alphitexolide, was isolated in very small amount. By spectroscopic methods and a partial synthesis its structure was established as(1). 
ER  -

