• Login
    • Login
    Advanced Search
    Search 
    •   UoN Digital Repository Home
    • Journal Articles
    • Faculty of Science & Technology (FST)
    • Search
    •   UoN Digital Repository Home
    • Journal Articles
    • Faculty of Science & Technology (FST)
    • Search
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Search

    Show Advanced FiltersHide Advanced Filters

    Filters

    Use filters to refine the search results.

    Now showing items 1-10 of 58

    • Sort Options:
    • Relevance
    • Title Asc
    • Title Desc
    • Issue Date Asc
    • Issue Date Desc
    • Results Per Page:
    • 5
    • 10
    • 20
    • 40
    • 60
    • 80
    • 100
    Thumbnail

    Anthraquinones of the roots of Pentas micrantha 

    Endale, M; Ekberg, A; Alao, JP; Akala, HM; Ndakala, A; Sunnerhagen, P; Erdélyi, M; Yenesew, A; Yenesew, Abiy (University of Nairobi, 2012-12)
    Pentas micrantha is used in the East African indigenous medicine to treat malaria. In the first investigation of this plant, the crude methanol root extract showed moderate antiplasmodial activity against the W2- (3.37 ...
    Thumbnail

    Antiparasitic and anticancer carvotacetone derivatives of Sphaeranthus bullatus. 

    Machumi, F; Yenesew, Abiy; Midiwo, JO; Heydenreich, M; Kleinpeter, E; Tekwani, BL; Khan, SI; Walker, LA; Muhammad, I (University of Nairobi, 2012-09)
    The CH2Cl2-MeOH (1:1) extract of the aerial parts of Sphaeranthus bullatus, an annual herb native to tropical East Africa, showed activity against chloroquine sensitive D6 (IC50 9.7 microg/mL) and chloroquine resistant W2 ...
    Thumbnail

    Isoflavanones and 3-Methoxyflavones from the Stem Bark of Platycelphium voense 

    Yenesew, Abiy; Erdelyi, Mate; Ndiege, Isaiah O.; Okalebo, Faith A.; Derese, Solomon; Heydenreich, Mathias; Gumuia, Ivan (2011)
    Platycelphium (Engl.) Wild (Leguminosae) is a monotypic genus that occurs in the drier parts of Eastern Africa (Gillett et 01., 1971). Prior to this report, the only phytochemical studies on Platycelphium voense describe ...
    Thumbnail

    A xanthone and a phenylanthraquinone from the roots of Bulbine frutescens, and the revision of six seco-anthraquinones into xanthones 

    Abdissa, Negera; Heydenreich, Matthias; Midiwo, Jacob O; Ndakal, Albert; Majer, Zsuzsanna; Neumann, Beate; Stammler, Hans-Georg; Sewald, Norbert; Yenesew, Abiy (University of Nairobi, 2014)
    Phytochemical investigation of the dichloromethane/methanol (1:1) extract of the roots of Bulbine frutescens led to the isolation of a new xanthone, 8-hydroxy-6-methylxanthone-1-carboxylic acid (1) and a new phenylanthraquinone, ...
    Thumbnail

    Flavonoids and isoflavonoids from Tephrosia fulvinervis and Tephrosia pentaphylla 

    Dagne, Ermias; Yenesew, Abiy; Waterman, Peter G (University of Nairobi, 1989)
    From the roots, leaves and pods of Tephrosia pentaphylla three new 6-oxygenated rotenoids (dihydrostemonal, 9-demethyldihydrostemonal and 6-acetoxydihydrostemonal) were isolated and characterized. In addition six known ...
    Thumbnail

    Four isoflavones from seed pods of Millettia dura 

    Yenesew, Abiy; Midiwo, JO; Waterman, Peter G (University of Nairobi, 1996-02)
    Seed pods of Millettia dura yielded four novel isoflavones, which have been characterized as 3-(3,4-dimethoxyphenyl)-6-methoxy-8,8-dimethyl-4H,8H-benzo[1,2-b: 3,4-b′]dipyran-4-one (trivial name, durallone), 6-demethyldurallone, ...
    Thumbnail

    Three dimeric anthracene derivatives from the fruits of Bulbine abyssinica. Tetrahedron 61, 2667 

    Bringmannc, Gerhard; Reichert c, Matthias; Dreyer, Michael; Peter, Martin G; Heydenreich, Matthias; Midiwo, Jacob O; Yenesew, Abiy; Wanjohi, John M (2005)
    Thumbnail

    Two new isoflavones from millettia dura 

    Yenesew, Abiy; Midiwo, J.O.; Derese, Solomon (2010)
    The genus Millettia belongs to the family Fabaceae. It is represented by more than 200 species and is, found widely distributed in tropical Africa, Australia and Asia. Previous chemical investigationsof a number" of ...
    Thumbnail

    Natural Products from Plant Diversity and their Potential in Management of Neglected Diseases 

    Derese, Solomon; Kerubo, Leonida; Yenesew, Abiy; Machumi, , Francis; Jacob O. Midiwo (2011)
    Conventionally, neglected diseases are considered as a group of 13 infectious diseases that are . endemic in the low income populations in the tropical developing world. They can be classified as those caused by trypanosomal ...
    Thumbnail

    6-Methoxycalpogonium Isoflavone A:  A New Isoflavone from the Seed Pods of Millettia dura 

    Yenesew, Abiy; Midiwo, Jacob O; Waterman, Peter G (University of Nairobi, 1997-08)
    From the seed pods of Millettia dura a new isoflavone has been isolated and identified as 3-(4-methoxyphenyl)-6-methoxy-8,8-dimethyl-4H,8H-benzo[1,2-b:3,4-b‘]dipyran-4-one (trivial name 6-methoxycalopogonium isoflavone A). ...
    • 1
    • 2
    • 3
    • 4
    • . . .
    • 6

    Copyright © 2022 
    University of Nairobi Library
    Contact Us | Send Feedback

     

     

    Useful Links
    UON HomeLibrary HomeKLISC

    Browse

    All of UoN Digital RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Discover

    Author
    Yenesew, Abiy (53)
    Heydenreich, Matthias (15)Dagne, Ermias (10)Derese, Solomon (10)Midiwo, Jacob O (9)Akala, Hoseah M (6)Waterman, Peter G (6)Erdélyi, Máté (5)Peter, Martin G (5)Erdelyi, Mate (4)... View MoreSubject(S)-Lupinifolin 4´-methyl ether (1)Aedes aegyp (1)African traditional medicine; Dodonaea viscosa; antimicrobial activity; chemosystematics; hopbush; metabolomics; natural products chemistry; phenolics; terpenoids. (1)alkaloids; antimicrobial activity; anticancer activity; canthinones; medicinal plant; phytochemistry; traditional medicine (1)Aloe;Alooideae;Asphodelaceae;roots;anthraquinones;pre-anthraquinones;chemotaxonomy (1)Antibacterial activity; Elongatin; Flavanone; Structure revision; Tephrosia uniflora; β-Hydroxydihydrochalcone. (1)Antileishmanial; Antiplasmodial; Cytotoxicity; Flavanonol; Flavonol; Leguminosae; Mundulea sericea. (1)Antimalarial plants, antiplasmodial, cytotoxicity, marker compound, Maytenus spp., phytomedicine, pristimerin. (1)Antiplasmodial (1)Asteraceae;Aspilia pluriseta;Aspilia mossambicensis;ent-kaurane diterpenoid; X-ray crystalstructure; cytotoxicity (1)... View MoreDate Issued2020 - 2022 (5)2010 - 2019 (28)2000 - 2009 (7)1990 - 1999 (12)1980 - 1989 (5)1972 - 1979 (1)Has File(s)No (36)Yes (22)

    Copyright © 2022 
    University of Nairobi Library
    Contact Us | Send Feedback