| 扁枝藓中锯齿石松烷型三萜的NMR化学位移全归属 |
| |
| 引用本文： | 王小宁,娄红祥.扁枝藓中锯齿石松烷型三萜的NMR化学位移全归属[J].波谱学杂志,2005,22(1):35-41. |
| |
| 作者姓名： | 王小宁 娄红祥 |
| |
| 作者单位： | 山东大学 药学院, 山东 济南 250012 |
| |
| 摘 要： | 从扁枝藓(Homalia trichomanoides)中分得了三个锯齿石松烷型三萜化合物: 3α-甲氧基-锯齿石松-14-烯-21β-醇(1)、3β-甲氧基-锯齿石松-14-烯-21β-醇(2)和3β-甲氧基-锯齿石松-14-烯-21-酮(3), 应用1D和各种2D NMR实验技术(包括1H-1H COSY, HMQC和HMBC)对化合物结构进行了研究, 对1H和13C化学位移进行了完全归属, 并根据1H NMR中信号的裂分对三个化合物C-3位与1和2的C-21位的立体构型作出了判断
|
| 关 键 词： | NMR 归属 HMQC HMBC 锯齿石松烷型三萜 扁枝藓 |
| 文章编号： | 1000-4556(2005)01-0035-07 |
| 收稿时间： | 2004-08-23 |
| 修稿时间： | 2004年8月23日 |
Complete NMR Chemical Shift Assignments for Three Serratane Triterpenoids Isolated from Moss Homalia Trichomanoides |
| |
| WANG Xiao-ning,LOU Hong-xiang.Complete NMR Chemical Shift Assignments for Three Serratane Triterpenoids Isolated from Moss Homalia Trichomanoides[J].Chinese Journal of Magnetic Resonance,2005,22(1):35-41. |
| |
| Authors: | WANG Xiao-ning LOU Hong-xiang |
| |
| Institution: | School of Pharmaceutical Sciences, Shandong University, Jinan 250012, China |
| |
| Abstract: | The chemical structures of three serratane type triterpenoids isolated from the moss Homalia trichomanoides (Hedw.) B. S. G. were elucidated as 3α-methoxyserrat-14-en-21β-ol (1), 3β-methoxy-serrat-14-en-21β-ol (2) and 3β-methoxyserrat-14-en-21-one (3). Their 1H and 13C chemical shifts were assigned using 1D and 2D NMR spectroscopy (including 1H-1H COSY, HMQC and HMBC). Stereochemistry of C-3 for the three compounds and that of C-21 for compounds 1 and 2 were determined by coupling patterns in the 1H NMR spectra. |
| |
| Keywords: | NMR HMQC HMBC |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《波谱学杂志》浏览原始摘要信息 |
| 点击此处可从《波谱学杂志》下载免费的PDF全文 |
