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White, Robert L.

Permanent URI for this collectionhttps://hdl.handle.net/10222/27752

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    Chemical Constituents from Stem Bark and Roots of Clausena anisata
    (2012-11) Songue, Jules Lobe; Kouam; Dongo, Etienne; Mpondo, Theophile Ngando; White, Robert L.
    Phytochemical investigations on the stem bark and roots of the tropical shrub Clausena anisata led to the isolation and characterization three carbazole alkaloids: girinimbine, murrayamine-A and ekeberginine; two peptide derivatives: aurantiamide acetate and N-benzoyl-L-phenylalaninyl-N-benzoyl-L-phenylalaninate; and a mixture of two phytosterols: sitosterol and stigmasterol. The structures of these compounds were established by nuclear magnetic resonance (H-1-NMR, C-13-NMR, COSY, HSQC, HMQC, HMBC and NOESY) spectroscopy and electrospray ionization mass spectrometry (MS).