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    • Chemical Constituents And Biological Activities Of Zanthoxylum Usambarense 

      He, Weidong; Van Puyvelde, Luc; De Kimpe, Norbert; Verbruggen, Luc; Anthonissen, Kristel; Van der Flaas, Mark; Bosselaers, Jan; Mathenge, Simon G; Mudida, Francis P (University of Nairobi, 2002-02)
      Bioassay-guided fractionation of the dichloromethane extracts of the roots and the bark of Zanthoxylum usambarense led to the isolation of two physiologically active compounds, i.e. canthin-6-one 1 (fungicide) and pellitorine ...