Department of Chemistry, Faculty of Science and Mathematics, University Pendidikan Sultan Idris, 35900 Tanjung
Malim, Perak; 2Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur.
In Malaysia, Alstonia spathulata Bl. is locally known as ‘pulai basong’ which distribute in peat forest. The separation of the
chemical components from hexane crude extract (bark) of Alstonia spathulata was carried out using different chromatographic
techniques (column chromatography and thin layer chromatography). Two compounds were isolated and identified as betaamyrin
1a and beta-amyrin acetate 1b. The compounds are reported for the first time from this plant. The structures of these
compounds were elucidated based on the basis of detailed 1D-NMR (1H, 13C and DEPT) and 2D-NMR (COSY, HSQC,
HMBC) spectroscopic analysis, involving also comparison with data from the literature.