| 摘要: |
| 以叶碟定量载毒饲虫法追踪活性，经柱层析及重结晶，从杀虫植物苦皮藤（Celastrus angulatus）根皮的石油醚提取物中分离出一个化合物G。这一化合物对昆虫有独特的作用机制：破坏昆虫中肠肠壁细胞，引起昆虫上吐下泻，大量失水而亡。主要利用高分辨质谱和核磁共振波谱鉴定了这个化合物的分子结构为2β，8α─乙酰氧基─9β─苯甲酰氧基─1β，12─二异丁酰氧基─4α，6α─二羟基─β─二氢沉香呋喃。经文献检索，化合物G为从未报道过的新化合物，命名为苦皮藤素V。 |
| 关键词: 植物性杀虫剂，分离，分子结构/苦皮藤 |
| DOI： |
| 分类号:S482.39 |
| 基金项目: |
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| New Sesquiterpenoid Celangulin: Isolation and Determination |
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| Abstract: |
| A new dihydroagarofuran sesquiterpenoid,Celangulin V, was isolated from the root bark of Chinese bittersweet,Celastrus angulatus,Max. Its structure was determined mainly by NMR and mass spectromtry. The results of bioassay showed that Celangulin V might be an insect midgut damaging agent. |
| Key words: botanical insecticides, separation, molecular structrue/Celastrus angulatus |
