Browsing Faculty of Science & Technology (FST) by Author "Van Puyvelde, Luc"

Now showing items 1-5 of 5

    • Activity of 6-Pentadecylsalicylic Acid from Ozoroa insignis Against Marine Crustaceans 

      He, Weidong; Van Puyvelde, Luc; Bosselaers, Jan; De Kimpe, Norbert; Van der Flaas, Marc; Roymans, Annemie; Mathenge, Simon G; Mudida, Francis P; Chalo Mutiso, Patrick B (University of Nairobi, 2002)
      Bioassay-guided fractionation of the dichloromethane extract from twigs of Ozoroa insignis using Artemia salina larvae as a model led to the isolation of 6-pentadecylsalicylic acid as the active principle. This is the first ...

    • A Benzochromene from the Roots of Pentas Bussei 

      Bukuru, Jacques F; Nguyen Van, Tuyen; Van Puyvelde, Luc; Mathenge, Simon G; Mudida, Francis P; De Kimpe, Norbert (University of Nairobi, 2002)
      A new homoprenylated benzochromene, methyl-5,10-dihydroxy-7-methoxy-3-methyl-3-[4-methyl-3-pentenyl]-3H-benzo[f]chromene-9-carboxylate (1), was isolated from the roots of Pentas bussei, collected from Kenya. The structure ...

    • 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 ...

    • Kirkinine, a New Daphnane Orthoester with Potent Neurotrophic Activity from Synaptolepis kirkii 

      He, Weidong; Cik, Miroslav; Lesage, Anne; Van der Linden, Ilse; De Kimpe, Norbert; Appendino, Giovanni; Bracke, Johan; Mathenge, Simon G; Mudida, Francis P; Leysen, Josée E; Van Puyvelde, Luc (University of Nairobi, 2000)
      The bioassay-guided fractionation of a dichloromethane extract from the roots of Synaptolepis kirkii using neuronal viability as a model allowed the isolation of the new daphnane orthoester kirkinine (1a) as a powerful ...

    • Neurotrophic And Antileukemic Daphnane Diterpenoids From Synaptolepis Kirkii 

      He, Weidong; Cik, Miroslav; Van Puyvelde, Luc; Van Dun, Jacky; Appendino, Giovanni; Lesage, Anne; Van der Lindin, Ilse; Leysen, Josée E; Wouters, Walter; Mathenge, Simon G; Mudida, Francis P; De Kimp, Norbert (University of Nairobi, 2002-10)
      Biological assay guided fractionation of a dichloromethane extract of Synaptolepis kirkii led to the isolation of four new and five known daphnane-type diterpene orthoesters, whose structure was established by spectroscopic ...