Study on Chemical Constituents of Blumea fistulosa(Roxb.)Kurz
Abstract:Objective:To explore the chemical constituents of Blumea fistulosa (Roxb.)Kurz.Methods:The compounds were isolated and purified by column chromatography by repeated silica gel,sephadex LH-20 gel or ODS etc.from EtOAc extraction of the B.fistulosa.The structures of the isolated compounds were elucidated on the basis of spectroscopic analysis(MS,NMR).Results:9 compounds were isolated,which were identified as:apigenin-7-O-β-D-glucopyranoside(1),apigenin(2),ethyl caffeate(3),luteolin(4),3-phenyllactic acid(5),tricin(6),chrysoeriol(7),lupeol(8)and 32,33,34-trimethyl-bacteriohopan-16-ene3-O-β-D-glucopyranoside(9).Conclusion:The chemical constituents of B.fistulosa were isolated and identified for the first time,and the active mechanism of these compounds was postulated through literature investigation.The study lays a foundation for further study of active substances of B.fistulosa.