Two New Isoflavones from Caragana Microphylla Lam

摘要

Caragana Microphylla lam. is a traditional Chinese folk medicine for promoting blood circle, treating hypertension and also can be used for the treatment of rheumatoid diseases1,but little is known about its chemical constituents except for several flavones. We have carried out a detailed chemical investigation of its stems and roots and have isolated tow new