Study on flavonoids constituent in Mallotus apelta / 中国生化药物杂志

Compounds from Mallotus apelta were isolated by a combination of polyamide columnar chromatography and HPLC method.The compounds' structure were identified by chemical and spectral Methods .Five kinds of flavonoids were isolated from Mall-otus apelta ethyl acetate extracts by HPLC techniques and their structures were determined through spectral analysis(1H,13C-NMR and MS)and comparison with the literature data.Their structures were identified as(1)vicentⅡ,(2)isoschaftoside,(3)schaftoside,(4)apigenin-7-O-β-D-glucopyranoside and(5)apigenin.In addtion, isoschaftoside and schaftoside is the first time obtained from Mallotus apelta.