Abstract: A ne steroidal saponin,named chloromaloside E,was isolated from the fresh rhizomes of Chlorophytum malayense,together with three known saponins,chloromaloside A-C. Using the spectral and chemical methods,the structure of chloromaloside E was elucidated as 26-O-β-D-glucopyranosyl-22 hydroxy-25(S)-5α-furostan-12 -oxo-3β,26-diol 3-O-β-D-xylopyranosyl(1→3)[α-L-arabinopyanosyl(1→ 2)]-β-D-glucopyranosyl(1→4)-[α-L-rhmnopyranosyl(1→ 2)]-β-D-galactopyranoside.

Key words: Liliaceae, Chlorophytum malayense, Chloromaloside E, Steroidal saponin

摘要： 从百合科植物大叶吊兰(Chlorophytum malayense)根茎中分离得到1个新的呋甾烷型甾体皂甙，命名为大叶吊兰甙E(chloromaloside E)。经波谱和化学方法证明其结构为：26-O-β-D-glucopyranosyl-22-hydroxy-25(S)-5α-furostan-12-oxo-3β,26-diol 3-O-β-D-xylopyranosyl(1→3)［α-L-arabinopyranosyl(1→2)］-β-D-glucopyranosyl(1→4)-［α-L-rhamnopyranosyl(1→2)］-β-D-galactopyranoside。同时，还得到大叶吊兰甙A，B和C。

关键词: 百合科, 大叶吊兰, 甾体皂甙, 大叶吊兰甙E