Flavonoids from Aerial Parts of Zhuang Medicine Blumea aromatica
Abstract:Objective:To search bioactive compounds from aerial parts of Blumea aromatica (wall.)DC.,a Zhuang medicinal herb.Methods:The compounds were isolated and purified by column chromatographies by repeated silica gel,Sephadex LH-20 gel or ODS etc from EtOAc extraction of the whole herbs.Their structures of the isolated compounds were elucidated on the basis of spectroscopic analysis(MS,NMR etc.).Results:Seven flavonoids were isolated.Their structures were identified as santin(1),acacetin(2),apigenin(3),centaureidin(4),chrysoeriol(5),luteolin(6),luteolin-7-O-β-D-glucopyranoside(7).Conclusion:Compound 6 has been isolated from B.aromatica previously,and the other six compounds were isolated from this herb for the first time.The bioactivity of these chemicals,as well as the mechanism of their action about the pharmacodynamics of B.aromatica were discussed through the investigation of the latest literature.The separation and identification of these chemical components laid a foundation for further study of active substances of this herb and for guiding significance for the chemical taxonomy of the plant.