作者:Huaping Zhang、Abbas K. Samadi、Robert J. Gallagher、Juan J. Araya、Xiaoqin Tong、Victor W. Day、Mark S. Cohen、Kelly Kindscher、Rao Gollapudi、Barbara N. Timmermann
DOI:10.1021/np200635r
日期:2011.12.27
Fourteen new withanolides, 1–14, named withalongolides A–N, respectively, were isolated from the aerial parts of Physalis longifolia together with eight known compounds (15–22). The structures of compounds 1–14 were elucidated through spectroscopic techniques and chemical methods. In addition, the structures of withanolides 1, 2, 3, and 6 were confirmed by X-ray crystallographic analysis. Using a MTS
从Physalis longifolia的地上部分分离出 14 种新的睡茄内酯1 – 14 ,分别命名为 withalongolides A–N 以及八种已知化合物 ( 15 – 22 )。通过光谱技术和化学方法阐明了化合物1-14的结构。另外,睡茄内酯1、2、3和6的结构通过X射线晶体分析得到确认。使用MTS活力测定,八种茄内酯( 1 , 2 , 3 , 7 , 8 , 15 , 16 , 和19 )和四种乙酰化衍生物( 1a , 1b , 2a , 和2b )对人头颈鳞状细胞显示出有效的细胞毒性癌(JMAR 和 MDA-1986)、黑色素瘤(B16F10 和 SKMEL-28)和正常胎儿成纤维细胞 (MRC-5) 细胞,IC 50值在 0.067 至 9.3 μM 之间。