Abstract
Phytochemical study on the stem bark of Clausena excavata Burm. f. led to the isolation and identification of 11 compounds, including four prenylated coumarins (1–4), three carbazole alkaloids (5–7), a limonoid (8), a sterol (9), a depside (10) and a xanthone (11). The chemical structures of the compounds were elucidated based on NMR and mass spectroscopic data, and further supported by comparison with previously literature values. This is the first report on the isolation of compounds 10 and 11 from the genus Clausena. The chemotaxonomic significance of the isolated compounds is discussed.
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