Studies on chemical constituents from radix and rhizome of Asarum longerhizomatosum

Object To study the chemical constituents in the radix and rhizome of Asarum longerhizomatosum C F Liang et C S Yang Methods Chromatography and spectral analysis were used to isolate the chemical constituents and elucidate their structures Results Nine compounds were isolated from ethanol extract of the radix and rhizome of A longerhizomatosum On the basis of spectra data, they were identified as spilanthol (Ⅰ), magnosalin (Ⅱ), heterotropan (Ⅲ), N isobutyl 3, 4 methylenedioxy cinnamide (Ⅳ), aristololactam Ⅰ (Ⅴ), daucosterol (Ⅵ), 7 methoxyaristololactam Ⅳ (Ⅶ), aristolochic acid Ⅰ (Ⅷ) and vanillic acid (Ⅸ) Conclusion All compounds were first isolated from the plant and the compounds Ⅰ and Ⅱ were isolated from Asarum L for the first time