Spinasterol (1) and four flavonoids (2-5) were isolated from Albizia myriophylla wood collected at Phu Yen province, Vietnam. The chemical structures of these compounds were elucidated by NMR spectroscopy as well as compared with data in the literature. The contents of some high yield isolated compounds (2-4) in the ethanol extract of A. myriophylla were quantified by high-performance liquid chromatography. These HPLC chromatograms could be used to reveal the presence of isolated compounds as markers of the sample. |
