Oleanane-type saponins and prosapogenins from Albizia julibrissin and their cytotoxic activities
作者:Qinghua Han、Yi Qian、Xuda Wang、Qingying Zhang、Jingrong Cui、Pengfei Tu、Hong Liang
DOI:10.1016/j.phytochem.2021.112674
日期:2021.5
Two undescribed oleanane-type saponins, julibrosides K-L, along with three undescribed oleanane-type prosapogenins, julibrosides M-O, were isolated from the stem bark of Albizia julibrissin Durazz. and the mild alkaline hydrolysate of the total saponin, respectively. Their structures were established by extensive analysis of 1D and 2D NMR experiments (COSY, TOCSY, HSQC, HMBC, and HSQC-TOCSY) and mass
从杜鹃花杜拉兹(Albizia julibrissin Durazz)的茎皮中分离出两种未描述的齐墩果烷型皂苷,julibrosides KL,以及三种未描述的齐墩果烷型prosapogenins,julibrosides MO。总皂苷的温和碱性水解产物。通过对1D和2D NMR实验(COSY,TOCSY,HSQC,HMBC和HSQC-TOCSY)和质谱进行大量分析,确定了它们的结构。此外,评估了分离出的化合物对BGC-823,A549,HCT-116和HepG2细胞系的细胞毒活性,朱利普糖甙L对四种癌细胞系表现出显着的细胞毒活性,IC50值分别为5.77、4.80、4.26,和4.93μM。