甘遂中巨大戟萜醇型二萜酯类化学成分的研究

Studies on ingenol-type diterpene esters in root tuber of Euphorbia kansui

目的 分离鉴定甘遂 Euphorbia kansui中巨大戟萜醇 (ingenol)型二萜酯类化学成分。方法 运用波谱技术 ,尤其是 2 DNMR技术 (1 H- 1 HCOSY,HSQC,HMBC和 NOESY实验 )进行结构鉴定。结果 分离得到 6个巨大戟萜醇型二萜酯 ,确定了其中两个主要化合物的结构 ,分别为巨大戟萜醇 - 3- 2′E,4′Z癸二烯酯 - 2 0 -乙酸酯 [3- O- (2′E,4′Z- decadienoyl) - 2 0 - O- acetylingenol]( )和甘遂大戟萜酯 C(kansuiphorin C) ( )。结论 首次报道了 的全部 NMR数据和 的碳谱数据 ,并利用多种 2 DNMR技术对 和 的全部 NMR数据进行了归属。

Object A study on the ingenol-type diterpene esters of Euphorbia kansui T. N. Liou ex T. P. Wang. Methods Their structures were elucidated by spectral analysis, especially 2DNMR ( 1H- 1HCOSY, HSQC, HMBC and NOESY). Results Six ingenol-type diterpene esters were isolated successfully, two of them were identified as 3-O-(2′E, 4′Z-decadienoyl)-20-O-acetylingenol (Ⅰ) and kansuiphorin C (Ⅱ). Conclusion NMR data of compound Ⅰ and 13 CNMR data of compound Ⅱ were first reported. On the basis of variety of 2DNMR experiments, NMR data of compound Ⅰ and Ⅱ were well assigned.