Browsing Faculty of Science & Technology (FST) by Subject "Derris trifoliata"

Now showing items 1-3 of 3

    • 7a-O-methyldeguelol, a modified rotenoid with an open ring-C, from the roots of Derris trifoliata 

      Yenesew Abiy.; Mushibe,EK.; Induli M.; Derese Solomon.; Midiwo Jacob O.; Kabaru JM.; Heydenreich M.; Koch A.; Peter MG. (Department of Chemistry, University of NairobiDepartment of Zoology, University of Nairobi,Institut für Chemie, Universität Potsdam, P.O. Box 601553, D-14415 Potsdam, Germany, 2005-03)
      From the acetone extract of the roots of Derris trifoliata an isoflavonoid derivative, named 7a-O-methyldeguelol, a modified rotenoid with an open ring-C, representing a new sub-class of isoflavonoids (the sub-class is ...

    • Antiplasmodial and larvicidal flavonoids from Derris trifoliata 

      Yenesew, Abiy; Twinomuhwezi, Hannington; Kabaru, Jacques M; Akala, Hoseah M; Kiremire, Bernard T; Heydenreich, Matthias; Peter, Martin G; Eyase, Fredrick L; Waters, Norman C; Walsh, Douglas S (Department of Chemistry, University of Nairobi,School of Biological Sciences, University of NairobiUnited States Army Medical Research Unit-Kenya, MRU 64109, APO, AE 09831-4109, USADepartment of Chemistry, Makerere University, P.O. Box 7062, Kampala, UgandaInstitut für Chemie, Universität Potsdam, P.O. Box 60 15 53, D-14415 Potsdam, Germany, 2009)
      From the dichloromethane-methanol (1:1) extract of the seed pods of Derris trifoliata, a new flavanone derivative (S)-lupinifolin 4´-methyl ether was isolated. In addition, the known flavonoids lupinifolin and rotenone ...

    • Two unusual rotenoid derivatives, 7a-O-methyl-12a-hydroxydeguelol and spiro-13-homo-13-oxaelliptone, from the seeds of Derris trifoliata 

      Yenesew Abiy.; Kiplagat JT.; Derese Solomon.; Midiwo Jacob O.; Kabaru JM.; Heydenreich M.; Peter MG. (Department of Zoology, University of Nairobi,Department of Chemistry, University of NairobiInstitut für Chemie, Universität Potsdam, P.O. Box 601553, D-14415 Potsdam, Germany, 2006-05)
      The crude methanol extract of the seeds of Derris trifoliata showed potent and dose dependent larvicidal activity against the 2nd instar larvae of Aedes aegypti. From this extract two unusual rotenoid derivatives, a ...