Lathyrane Diterpenoids from the Roots of <i>Euphorbia micractina</i> and Their Biological Activities
作者:Ye Tian、Wendong Xu、Chenggen Zhu、Sheng Lin、Yanru Li、Liang Xiong、Sujuan Wang、Ling Wang、Yongchun Yang、Ying Guo、Hua Sun、Xiaoliang Wang、Jiangong Shi
DOI:10.1021/np2001489
日期:2011.5.27
Seventeen new lathyrane diterpenoids (1 - 17) and two known analogues have been isolated from an ethanolic extract of Euphorbia micractina roots. Their structures including absolute configurations were determined by spectroscopic data interpretation and single-crystal X-ray crystallography. Compound 10 showed activity against HIV-1 replication in vitro, with an IC(50) value of 8.2 mu M. Compounds 6, 7, 11, 14, 15, and 18, at 10(-6) M, showed significant vascular-relaxing activities against phenylephrine-induced vasoconstriction with relaxation rates of 48%, 41%, 42%, 48%, 50%, and 53%, respectively.