TY - JOUR A1 - Bannon, CD A1 - Eade, RA A1 - Simes, JJH T1 - Extractives of Australian timbers. XVI. The constituents of the wood of Eugenia crebrinervis (syn. Syzigium crebrinerve) and Eugenia gustavioides (syn. Cleistocalyx gustavioides) JF - Australian Journal of Chemistry JO - Aust. J. Chem. Y1 - 1976 VL - 29 IS - 5 SP - 1135 EP - 1141 KW - UR - https://doi.org/10.1071/CH9761135 N2 - 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. ER -