Abstract: Chemical investigation on the leaves and twigs of Litsea euosma W . W . Smith (Lauraceae ) led to the isolation of a new compound named a derivative of α-pyranone ( 1) together with three known compounds, a derivative of ferulic acidic ester (2) , 6- O-palmitoyl-β-sitosteryl-D-glucoside (3) and glucose ( 4) . The structure of the new compound is elucidated as 5-hydroxy-6-methyl-3 -( undec-10-enyl ) -5 , 6-dihydropyran-2-one based on its spectroscopic analysis .

Key words: Litsea euosma

摘要： 从清香木姜子(Litsea euosma W . W . Smith) 的枝叶中分离得到1 个新化合物—α-吡喃酮衍生物(1) 以及3 个已知化合物: 阿魏酸酯衍生物(2) , 6-氧-棕榈酰-β-胡萝卜甙(3) 和葡萄糖(4) 。经波谱学鉴定新化合物α-吡喃酮衍生物的结构为: 5-羟基-6-甲基-3 -( 10-十一烯基)-5 , 6-二氢吡喃-2-酮。

关键词: 清香木姜子, 樟科, α-吡喃酮FONT