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Anti-plasmodial flavonoids from the stem bark of Erythrina abyssinica.
From the ethyl acetate extract of the stem bark of Erythrina abyssinica, a new chalcone, 2',3,4,4'-tetrahydroxy-5-prenylchalcone (trivial name 5- prenylbutein) and a new flavanone along with known flavonoids have been isolated as the anti-plasmodial principles. Expand
Anti-plasmodial activities and X-ray crystal structures of rotenoids from Millettia usaramensis subspecies usaramensis.
The dichloromethane extract of the stem bark of Millettia usaramensis subspecies usaramensis showed anti-plasmodial activity against the chloroquine sensitive (D6) and chloroquine resistant (W2)Expand
Effect of rotenoids from the seeds of Millettia dura on larvae of Aedes aegypti.
Saturation at the B/C ring junction and the presence of methoxy groups at C-2 and/or C-3 in deguelin and tephrosin appear to be important for the observed larvicidal activity. Expand
Common Antimalarial Trees and Shrubs of East Africa –A Description of Species and a Guide to Cultivation and Conservation through Use
This guide provides an overview of trees and shrubs used as antimalarial treatments and is not a handbook for self-medication, but rather a guide to cultivation and conservation through use. Expand
Chemotaxonomic significance of anthraquinones in the roots of asphodeloideae (asphodelaceae)
These compounds appear to be characteristic constituents for the three genera BulBine, Bulbinella and Kniphofia and support the idea that Kniph ofia is not related to the Alooideae. Expand
Flavonoids and isoflavonoids from Tephrosia fulvinervis and Tephrosia pentaphylla
Abstract From the roots, leaves and pods of Tephrosia pentaphylla three new 6-oxygenated rotenoids (dihydrostemonal, 9-demethyldihydrostemonal and 6-acetoxydihydrostemonal) were isolated andExpand
Bioactive compounds from some Kenyan ethnomedicinal plants: Myrsinaceae, Polygonaceae and Psiadia punctulata
The benzoquinones showed anti-feedant, anti-microbial, phytotoxic, acaricidal, insecticidal and nematicidal activity, some of which are widely used as ethno-anthelmintics have been studied. Expand
Antiplasmodial β-hydroxydihydrochalcone from seedpods of Tephrosia elata
Abstract From the seedpods of Tephrosia elata , a new β-hydroxydihydrochalcone named ( S )-elatadihydrochalcone was isolated. In addition, the known flavonoids obovatachalcone, obovatin, obovatinExpand
Antiplasmodial quinones from Pentas longiflora and Pentas lanceolata.
The dichloromethane/methanol extracts of the roots of Pentas longiflora and Pentas lanceolata showed low micromolar activity and led to the isolation of eight anthraquinones, one of which is new (5,6-dihydroxydamnacanthol, 11), while three are reported here for the first time from the genus Pentas. Expand
Antiplasmodial potential of traditional phytotherapy of some remedies used in treatment of malaria in Meru-Tharaka Nithi County of Kenya.
The results seem to indicate that ethnopharmacological inquiry used in search for new herbal remedies as predictive and could be used as the basis for search of new active principles. Expand