东北紫杉茎皮化学成分的研究

Studies on the Constituents of the Stem Bark of Japanese Yew(Taxus cuspidata)

从东北紫杉（TaxuscuspidataSieb．etZucc．）的干燥茎皮中分得6个紫杉烷二萜类化合物。经理化性质及波谱分析，分别鉴定为，2-desacetoxyaustrospicatine（Ⅰ），紫杉醇（Ⅱ）．cephalomannine（Ⅲ），2-去乙酰氧基红豆杉素丁（Ⅳ），紫杉宁B（Ⅴ），10-去乙酰-7-O-β-D-木糖基紫杉醇（Ⅵ），其中Ⅰ为首次从该属植物中分得。

Six taxane diterpenoids were isolated from the stem bark of Tax us cuspidata Sieb. et Zucc.. On the basis of physical and chemical properties and spectra analysis,they were identified as 2'-de sacetoxyaustrospicatine(Ⅰ). taxol(Ⅱ),cephalomannine (Ⅲ), 2-deacetoxyl taxinine J (Ⅳ),taxinine B(Ⅴ) and 10-deacetyl-7-0-β-Dxylosyl-taxol (Ⅵ).