A new steroidal alkaloidal glucoside, C34H57NO7, mp 284-286 degrees C, named ningpeisinoside, was isolated from the bulb of Fritillaria ningguoensis S.C. Chen et S.F. Yin. Based on preparation of derivatives and IR, MS, 1HNMR, 13CNMR spectral studies, the structure of ningpeisinoside has been established as N-methyl-5 alpha-veratranine-6-oxo-3 beta-O-beta-D-glucoside(I).

中文翻译：

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宁贝母中的苦参苷的结构测定

从宁贝母的鳞茎中分离出一种新的甾体生物碱，C34H57NO7，熔点284-286℃，命名为宁贝苷。基于衍生物的制备和IR，MS，1HNMR，13CNMR光谱研究，已确定宁皮苷的结构为N-甲基-5α-藜芦碱-6-氧代3β-O-β-D-葡萄糖苷（I） 。