Abstract Phytochemical study on the stems and leaves of Clausena dunniana H. Lev. led to the isolation and identification of 14 coumarins (1–14). Their chemical structures were determined on the basis of MS, NMR, and further supported by comparison with those reported in the literature. This is the first report that compounds 1–2, 4, 8, and 12–14 are present in the genus Clausena, and all of these compounds were isolated from C. dunniana for the first time. The chemotaxonomic significance of these isolated compounds was discussed.

中文翻译：

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来自 Clausena dunniana H. Lév 茎和叶的香豆素

摘要 Clausena dunniana H. Lev 茎和叶的植物化学研究。导致了 14 种香豆素的分离和鉴定 (1-14)。它们的化学结构是在 MS、NMR 的基础上确定的，并通过与文献中报道的那些进行比较得到进一步支持。这是第一次报道化合物1-2、4、8和12-14存在于Clausena属中，并且所有这些化合物都是首次从C. dunniana中分离出来。讨论了这些分离化合物的化学分类学意义。