| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1206737 | Journal of Chromatography A | 2007 | 4 Pages |
Abstract
All of the four stereoisomers of an unprecedented type of flavanones, the dracorupesins, were separated from the aerial parts of Dracocephalum rupestre simultaneously. The dracorupesins were characterized as two diastereomeric pairs of enantiomers by on-line chiral high-performance liquid chromatography-circular dichroism (HPLC-CD) analysis, which was a reliable stereoanalytical tool for natural products. The planar structures of the compounds were elucidated by means of spectroscopic methods including IR, MS, one-dimensional NMR (1D-NMR) and two-dimensional NMR (2D-NMR) techniques.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Dong-Mei Ren, Huai-Fang Guo, Shu-Qi Wang, Hong-Xiang Lou,