Isolation and structure elucidation of two new compounds, kakispyrone (1) and kakisaponin A (2), together with 11 known compounds, from the leaves of Diospyros kaki L. are described. Their cytotoxic effects against several cancer cell lines (A549, HepG2 and HT29) are also reported.

中文翻译：

---

柿叶的化学成分及其细胞毒性作用。

描述了两种新化合物，柿柿（1）和柿总皂苷A（2），以及11种已知化合物，从柿（Diospyros kaki L.）的叶子中分离和结构鉴定。还报道了它们对几种癌细胞系（A549，HepG2和HT29）的细胞毒性作用。