南蛇藤昆虫拒食倍半萜成分的研究（Ⅱ）

The Instect Antifeedantal Sesquiterpenes from Celastrus Orbiculatus(Ⅱ)

南蛇藤昆虫拒食倍半萜成分的研究（Ⅱ）王明安，陈馥衡（北京农业大学应用化学系，北京，１０００９４）关键词南蛇藤，倍半萜，结构分析卫矛科植物含多种类型β－二氢沉香呋喃倍半萜多醇酯衍生物和生物碱［１］，有些化合物显示了良好的昆虫拒食和抗肿瘤活性［２～４］．...

One new antifeedantal sesquiterpene(1) along with two known sesquiterpenes lα,6iβ-diacetoxy-9β-benzoyloxy-β-dihydroagarofuran(2) and lα-acetoxy-6β-9β-dibenzoyloxy-β-dihydroagarofuran(3) were isolated from the seed oil of Celastrus orbiculatus. The structure of the new sesquiterpene was elucidated as lα,2α,8β-triacetoxy-9β-cinnamoyloxyβ-dihydroagarofuran by UV,IR,MS and 1H NMR,13C NMR,COSY,13 C-1 H COSY,HMBC .