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Antiparasitic and anticancer carvotacetone derivatives of Sphaeranthus bullatus.
(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 ...
Distribution of anthraquinone pigments in Rumex species of Kenya
(1985)
A correspondence between pigment structures and leaf morphology has been found in Kenyan Rumex species
New Dialkyl Benzoquinones from Fruits of Myrsine africana L and Maesa lanceolata, Forsk
(1996)
Two new natural benzoquinones, 2,5-dihydroxy-3-methyl-6-undecyl-1,4-benzoquinone (1, muketanin) and 2-O-methyl-muketanin (2) have been isolated from fruits of Myrsine africana and Maesa lanceolata respectively.
A New Flavonol Tetraglycoside from Myrsine Africana Leaves
(1996)
A new flavonol glycoside, quercetin 3 - glucosyl (1′″ - 4″) rhamnoside - 7 -rhamnosyl (1′″ - 6″″) glucoside (1) together with known flavonol glycosides, quercetin 3 -rhamnoside (2), quercetin 3 - glucoside (3) and myricetin ...
Preacansone A: Evidence For The Existence Of 8,9-(E) And 8,9-(Z) Isomers In Extracts From Tephrosia Pumila
(University of Nairobi, 1990)
Four isoflavones from seed pods of Millettia dura
(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, ...
Efficacy of microencapsulated repellents based on Psiadia punctulata exudate and Daphne essential oils
(2001)
This paper presents the results of testing the efficacy of microencapsulated repellents isolated from P. punctulata leaves, and the Daphne repellents. The active compound of Daphne is a mixture of more than twenty natural ...
Larvicidal benzoquinone from Embelia schimperi
(2004)
Chromatographic analysis of air-dried berries of Embelia schimperi led to the isolation of methyl vilangin (1), which was characterized on the basis of physical and spectroscopic data. The compound was found to be lethal ...
Antibacterial activity and structure-activity relationships of a panel of 48 compounds from Kenyan plants against multidrug resistant phenotypes
(University of Nairobi, 2016)
In the current study forty eight compounds belonging to anthraquinones, naphthoquinones, benzoquinones, flavonoids (chalcones and polymethoxylated flavones) and diterpenoids (clerodanes and kauranes) were explored for their ...
Diterpenoid derivatives of Kenyan croton sylvaticus
(University of Nairobi, 2015)
Kenyan Croton sylvaticus Hochst. ex Krauss gave four clerodane diterpenoids, the new ent-3,13E-clerodadiene-15-formate (1), the known 15-acetoxy-ent-3,13E-clerodadiene (2), ent-3,13E-clerodadien-15-ol (3) and hardwickiic ...