金荞麦(即野荞麦)为蓼科植物Fagopyrum cymosum(Trev.)Meisn,药用其根茎,民间用于治疗肺脓疡。试用于菌痢、麻疹后肺炎等疾患也获得较好的疗效。为了阐明有效成分,我们对其化学成分进行了研究。文献中报道,自多种荞麦中曾分得芦丁和无色花色甙元等成分。 我们从根茎中分得化合物甲、乙和丙三种成分。化合物甲为其主要有效成分,经制备成 Golden buckwheat (ie, wild buckwheat) is a plant of the family Fagopyrum cymosum (Trev.) Meisn. It is medicinally rooted and used for treating lung abscess. Trials with bacillary dysentery and pneumonia after measles have also achieved good results. In order to clarify the active ingredients, we studied the chemical composition. In the literature, it has been reported that various components of rutin and colorless amaranth have been obtained from various varieties of buckwheat. We separated the three components of the compounds A, B, and C from the rhizomes. Compound A is its main active ingredient and is prepared as