Two new Components, spiramine N (1) and spiraminol (2) were isolated from Spiraea japonica var. aecuminata Franch. Their structureswere elucidated bychemical and spectxal means.
A novel alkaloid named Hypodemapyrazine was isolated from the whole plantof a fern, Hypodematium sinense Iwatsuki. Its chemical structure has been elucidated to be a novel skeleton containing a hydro-pyrazine by means...A novel alkaloid named Hypodemapyrazine was isolated from the whole plantof a fern, Hypodematium sinense Iwatsuki. Its chemical structure has been elucidated to be a novel skeleton containing a hydro-pyrazine by means of UV, IR, ~1H-NMR, ^(13)C-NMR and HRMS spectroscopy.展开更多
文摘Two new Components, spiramine N (1) and spiraminol (2) were isolated from Spiraea japonica var. aecuminata Franch. Their structureswere elucidated bychemical and spectxal means.
文摘A novel alkaloid named Hypodemapyrazine was isolated from the whole plantof a fern, Hypodematium sinense Iwatsuki. Its chemical structure has been elucidated to be a novel skeleton containing a hydro-pyrazine by means of UV, IR, ~1H-NMR, ^(13)C-NMR and HRMS spectroscopy.
