【摘要】 本文报道自平贝母（Fritillaria ussuriensis Maxim）的地上茎叶中分得一种新的甾体生物碱甙,定名为平贝啶甙（pingbeidinoside）,mp 242～243.2℃[a]_D²⁵+6.9°（c 0.145,MeOH）。经IR,MS,¹HNMR和¹³CNMR谱解析,推定其结构为3β,16α,20-三羟基-Δ⁵-22,26-缩亚胺胆甾烷-25-O-α-D-葡萄糖甙。更多还原

【Abstract】 A new steroid alkaloid glucoside,pingbeidinoside,was isolated from the stem and leaf of Fritillaria ussuriensis Maxim by column chromatographic techniques. On the basis of the IR, MS, ¹HNMR and ¹³CNMR spectra of pingpeidinoside and products of its transfomation, the structure of pingbeidinoside has been established as 3β,16α,20-trihydroxy-△⁵-22,26-epiminocholestane-25-O-β-D-glucoside.更多还原