用二维核磁共振法研究肿足蕨碱的结构

APPLICATION OF 2D-NMR TECHNIQUES IN THE STRUC TURE DETERMINATION OF HYPODEMATINE

从金星蕨科植物山东肿足蕨(Hypodematium sinense Iwatsuki)的全草分得一种新化合物,通过~1H-~1H COSY谱,~1H-^(13)C COSY谱和远程~1H-^(13)C COSY谱确定其结构是一种具有苯基取代苯并氮杂环辛四烯新型骨架的生物碱,命名为肿足蕨碱(hypodematine)(Ⅰ),

A novel alkaloid, named hypodematine, was isolated from Hypodematium sinense Iwatsuki (belonging to the lypterdaceae ). Its structure has been elucidated to have a novel skeleton of benzo - aza - cyclooctatetraene with a phenyl substitution by means of the ~1H - ~1H COSY, ~1H - ^(13)C COSY and long - range ~1H - ^(13)C COSY spectroscopy.