作者:Xin Li、Min Yang、Yi-Feng Han、Kun Gao
DOI:10.1055/s-2005-837827
日期:2005.3
Four new and five known eudesmane-type sesquiterpenes were isolated from the aerial parts of Erigeron annus. The structures of these new compounds were elucidated by spectral means, including 2D-NMR analysis, to be 1 beta,4 beta-dihydroxyeudesman-11-ene; 1 beta,7 alpha-dihydroxyeudesman-4(15)-ene; (1 R,5 S,6 S,7 S,10 R)-1 beta, 6 alpha-dihydroxyeudesman-4-one and 1 beta- D-glucopyranosyloxy-6 alph
四个新的和五个已知的eudesmane 型倍半萜从Erigeron annus 的地上部分分离出来。这些新化合物的结构通过光谱方法(包括 2D-NMR 分析)阐明为 1β,4β-dihydroxyeudesman-11-ene;1 beta,7 α-dihydroxyeudesman-4(15)-ene;(1 R,5 S,6 S,7 S,10 R)-1 beta, 6 alpha-dihydroxyeudesman-4-one 和 1 beta-D-glupyranosyloxy-6 alpha-hydroxyeudesman-4(15)-ene。此外,对已知化合物 1 beta,6 α-dihydroxy-eudesman-4 (15)-ene 进行化学转化,得到衍生物 1beta,6alpha-dihydroxy-4beta(15)-epoxyeudesmane。评估了一些化合物的体外抗肿瘤活性。