Abstract A new apotirucallane-type triterpenoid, 3α-benzoate triterpenoid A (1), along with six known triterpenoids (2–7), one aromatic ester (8) and eight lignans (9–16), were isolated from the fruits of Melia azedarach Linn. The structure of 1 was determined by spectral analyses, including HR-ESI-MS, 1D NMR (1H NMR and 13C NMR) and 2D NMR (HSQC and HMBC) analyses. 10, 11 and 16 were reported for the first time from the family Meliaceae, 8 was identified from the genus Melia for the first time, and 2, 3, 5, 7, 9 and 12–15 were obtained from M. azedarach for the first time. The chemotaxonomic significance of these compounds is discussed.

中文翻译：

---

楝树（楝科）果实的化学成分

摘要 从苦楝果实中分离出一种新的阿波罗卡烷型三萜类化合物 3α-苯甲酸三萜类化合物 A (1)，以及六种已知的三萜类化合物 (2-7)、一种芳香酯 (8) 和八种木脂素 (9-16)。阿泽达克林恩。1 的结构通过光谱分析确定，包括 HR-ESI-MS、1D NMR（1H NMR 和 13C NMR）和 2D NMR（HSQC 和 HMBC）分析。10、11、16为楝科首次报道，8号为楝属首次鉴定，2、3、5、7、9、12-15为苦楝属植物。第一次。讨论了这些化合物的化学分类学意义。