Sesquiterpene Lactones with the 12,8-Guaianolide Skeleton from Algerian Centaurea omphalotricha
作者:Sara Kebbi、Maria Letizia Ciavatta、Ali Mokhtar Mahmoud、Marianna Carbone、Alessia Ligresti、Ramdane Seghiri、Margherita Gavagnin
DOI:10.3390/biom11071053
日期:——
includes, within major known metabolites, two new minor sesquiterpene lactones, centaurolide-A (1) and centaurolide-B (2). The structures of two compounds exhibiting the 12,8-guaianolide skeleton were determined by spectroscopic methods as well as by chemical correlation with inuviscolide (3), a well-known bioactive guaianolide isolated from Dittrichia (=Inula) viscosa. Centaurolides A and B represent
在继续对阿尔及利亚植物的化学多样性进行调查的过程中,我们检查了Centaurea omphalotricha,其化学成分研究甚少。目前的工作旨在表征该植物地上部分的 CHCl 3提取物的次生代谢产物模式,在对 HeLa 细胞系的初步筛选中显示出抗增殖特性。化学分析使我们对生物活性含氧萜类成分进行了表征,其中包括在主要已知代谢物中,两种新的次要倍半萜内酯,centaurolide-A ( 1 ) 和 centaurolide-B ( 2))。两种具有 12,8-愈创木内酯骨架的化合物的结构通过光谱方法以及与 inuviscolide ( 3 )的化学相关性确定,这是一种从Dittrichia (= Inula ) viscosa 中分离出的众所周知的生物活性愈创木酚内酯。Centaurolides A 和 B 代表了Centaurea属8,12-guaianolide 骨架的第一份报告。还评估了新化合物1和2以及