%A Xu Dong-ming, Huang En-xi,Wang Shu-qin, Wen Xiao-guang and Wu Xiu-ying %T Studies on the Chemical Constituents of Fritillaria pallidiflora Schrenk %0 Journal Article %D 1990 %J J Integr Plant Biol %R %P -${article.jieShuYe} %V 32 %N 10 %U {https://www.jipb.net/CN/abstract/article_26664.shtml} %8 %X Six steroid alkaloids, imperialine (Ⅰ), imperialine-3β-D-glucoside (Ⅱ), peimissine (Ⅲ), imperialine N-oxide (Ⅳ), cycloparnine (Ⅴ), and cycloposine (Ⅵ) were isolated from the bulbs of Fritillaria pallidiflora Schrenk. Their structures were determined from spectral data and chemical evidences. Imperialine N-oxide was first obtained from nature.