取干燥的平贝母(Fritillariaussuriensis)鳞茎(500g)用甲醇(6L)提取24h。甲醇提取液减压浓缩,用水分散,用正己烷、乙酸乙酯、丁醇萃取。显示活性的丁醇部分(3g)经减压硅胶柱层析,依次用含有0.5%二乙胺的乙酸乙酯-氯仿、含有0.5%二乙胺的甲醇-乙酸乙酯梯度洗脱,共得到10个组分。 The dried Fritillaria suriensis bulb (500 g) was extracted with methanol (6 L) for 24 h. The methanol extract was concentrated under reduced pressure, dispersed with water and extracted with n-hexane, ethyl acetate and butanol. The active butanol moiety (3 g) was subjected to column chromatography on a column of silica gel, eluting with a gradient of ethyl acetate-chloroform containing 0.5% diethylamine, followed by a gradient of methanol-ethyl acetate containing 0.5% diethylamine. 10 components.