摘要
Two C_(21)-steroids,named amalogenin A amd amaloside A were isola- ted from the rhizome of Amalocalyx yunnanesis.Their structures were estab- lished by analysis on the spectra of NMR including ~1H-~1H cosy,^(13)C-~1H COSY and confirmed by X-ray diffraction.
Two C_(21)-steroids,named amalogenin A amd amaloside A were isola- ted from the rhizome of Amalocalyx yunnanesis.Their structures were estab- lished by analysis on the spectra of NMR including ~1H-~1H cosy,^(13)C-~1H COSY and confirmed by X-ray diffraction.
