[4] Fudan Univ, Coll Pharm, Shanghai 200032, Peoples R China
来源:
JOURNAL OF NATURAL PRODUCTS
|
2006年
/
69卷
/
04期
关键词:
D O I:
10.1021/np050437q
中图分类号:
Q94 [植物学];
学科分类号:
071001 ;
摘要:
Three new sesquiterpenes (1-3), together with four known sesquiterpene lactones, were isolated from the flowers of Inula britannica var. chinensis. Structures were established on the basis of high-field 1D and 2D NMR methods supported by HRMS. All sesquiterpene lactones were tested for cytotoxicity as well as apoptotic ratio in human COLO 205, HT 29, HL-60, and AGS cancer cells. Compounds 3 and 4, two alpha-methylene gamma-lactone-bearing sesquiterpenes, were modestly active in these assays.