Isolation and structure identification of alkaloid and quassinoids from root bark of Ailanthus altissima
Objective Isolation and identification of chemicaL components from the root bark of AiLanthus altissima by HPLC method.Methods Crude products which were extracted with ethanol were separated and purified by preparative HPLC, and the structures of the compounds were identified by mass spectrometry (MS), 1H-NMR, and 13C-NMR.Results Under the above conditions, ailanthone (1), shinjulactone A (2), and a new β-carboline alkaloid (3) were successfully obtained, and the purities of the compounds are all above 95％.Conclusion A rapid and simple method is set up to isolate and identify lower content components from A.altissima.
the root bark of the Ailanthus altissima (Mill.) Swinglequassinoidβ-carboline alkaloidcarboline alkaloidpreparative HPLC
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