Abstract: This paper reports six alkaloids,colchicine(Ⅰ),2-demethylcochicine(Ⅱ),2-demethyldemecolcine(Ⅲ),2-demethylcoclchifoline(Ⅳ),2-demethyl-β-lumicolchicine(Ⅴ),and β-lumicolchicine(Ⅵ) isolated from the flowers of Colchicum autumnale which was introduced from Europe to Zhaotong ,Yunnan,China.

Key words: Colchicum autumnale, Alkaloids, Colchicine

摘要： 从云南昭通引种欧洲秋水仙花中分离出6个生物碱：秋水仙碱(I)，2-去甲秋水仙碱(II)，2-去甲脱羰秋水仙碱(III)，2-去甲-17-羟基秋水仙碱(IV)，2-去甲-β-光秋水仙碱(V)，β-光秋水仙碱(VI)。

关键词: 秋水仙, 生物碱, 秋水仙碱