%0 Journal Article %A Bannon, CD %A Eade, RA %A Simes, JJH %T Extractives of Australian timbers. XVI. The constituents of the wood of Eugenia crebrinervis (syn. Syzigium crebrinerve) and Eugenia gustavioides (syn. Cleistocalyx gustavioides) %J Australian Journal of Chemistry %D 1976/05/01 %V 29 %N 5 %P 1135-1141 %K %R https://doi.org/10.1071/CH9761135 %U https://www.publish.csiro.au/paper/CH9761135 %X Extraction of the wood of Eugenia crebrinervis has yielded ellagic acid and a triterpenoid fraction composed of a 1 : 1 mixture of asiatic acid and arjunolic acid. Extraction of the wood of Eugenia gustavioides has given a mixture of triterpenoid acids (2.7 % of the dry weight of the wood) of which crategolic acid (c.1%) is the principal constituent; other major constituents are asiatic acid and arjunolic acid, while oleanolic acid, ursolic acid and 2α-hydroxyursolic acid are minor constituents.In both Eugenia species the α-amyrin component occurs with the corresponding β-amyrin analogue giving a mixture separable only with difficulty; use has been made of the previously described chlorination procedure1 to enable comparatively easy isolation of the α-amyrin component.