Isolation and identification of chemical constituents from roots of Asarum heterotropides Fr Schmidt.var.mandshuricum (Maxim.) Kitag.(II)

Objective To study the chemical constituents from the roots of Asarum heterotropides Fr Schmidt.var.mandshuricum(Maxim.)Kitag.Methods The compounds were isolated by chromatography on silica gel columns and identified on the physical-chemical properties along with spectral analysis.Results Six compounds were obtained and identified as aristololactamⅠ(1),7-methoxy-aristololactam(2),aristolochic acid Ⅳa(3),p-hydroxybenzoic acid(4),5,7-di-O-β-D-glucpyranosyl-narigenin(5),2,6-dimethoxy-4-methylphenyl-1-O-β-D-glucopyranoside(6).Conclusions Among them,compounds 4 and 6 are isolated from Asarum genus for the first time,and compounds 2 and 5 are isolated from this plant for the first time.