乔木茵芋中的香豆素类化合物及其抗炎活性研究

目的:对乔木茵芋进行了化学成分研究。方法:采用硅胶柱色谱、葡聚糖凝胶LH-20柱色谱、RP-C18柱色谱等方法分离化学成分,1H,13C-NMR等方法进行结构鉴定;并采用小鼠二甲苯耳肿胀法检测乔木茵芋总提物的抗炎活性。结果:从中分离鉴定了6个香豆素类化合物:伞形花内酯(1),东莨菪内酯(2),东莨菪苷(3),紫花前胡苷元(4),茵芋苷(5),6,7-二甲氧基-香豆素(6);抗炎试验结果显示:乔木茵芋总提物中、高剂量组能明显抑制由二甲苯引起的小鼠耳廓肿胀。结论:所有化合物均为首次从该种植物中分离得到,且乔木茵芋在抗炎方面具有进一步研究的价值。

Coumarins from Skimmia arborescens and its anti-inflammatory effect

To investigate chemical constituents contained in Skimmia arborescens. The chemical constituents were separated by silica gel column chromatography, pharmadex LH-20, RP-C₁₈ , and ¹H,¹³C-NMR spectroscopic analysis were employed for the structural elucidation. Six coumarin compounds were separated from S. arborescens. Their structures were elucidated as umbelliferone(1),scopoletin (2), scopolin (3), nodakenetin (4), skimmin (5), 6, 7-dimethoxycoumarin(6), and all compounds were separated from the plant for the first time. Using the model of ear swelling caused by xylol of mice, the anti-inflammatory effect of its total extract was evaluated. The result indicated that middle and high dose groups of its total extract could obviously inhibit the ear swelling caused by xylol of mice.