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Trichodermadiene: a new trichothecene
(1980)
A new trichothecene, trichodermadiene possessing a dienic ester side chain has been isolated and characterized.
A xanthone and a phenylanthraquinone from the roots of Bulbine frutescens, and the revision of six seco-anthraquinones into xanthones
(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, ...
Triterpene saponins of Maesa lanceolata leaves
(2011)
Chemical investigation of
Maesa lanceolata
leaves aqueous MeOH extract has led to the isolation
of eight new triterpene glycosides
identified as 16-oxo-28-hydroxyolean-12-ene 3-
O
-
β
-glucopyranosyl-(1''
→
6') ...
6-Methoxycalpogonium Isoflavone A: A New Isoflavone from the Seed Pods of Millettia dura
(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). ...
Four isoflavones from the stem bark of erythrina sacleuxii
(University of Nairobi, 1998-09-03)
From the stem bark of Erythrina sacleuxii four new isoflavones were isolated and characterized as 5,7-dihydroxy-2′,4′,5′-trimethoxyisoflavone (trivial name, 7-demethylrobustigenin), 5,7-dihydroxy-4′-methoxy3′-(3-methylbu ...
Knipholone cyclooxanthrone and an anthraquinone dimer with antiplasmodial activities from the roots of Kniphofia foliosa
(2013)
A new phenylanthrone, named knipholone cyclooxanthrone and a dimeric anthraquinone, 10-methoxy-10,7′-(chrysophanol anthrone)-chrysophanol were isolated from the roots of Kniphofia foliosa together with the rare naphthalene ...
Antiplasmodial Flavonoids from Erythrina sacleuxii
(University of Nairobi, 2006-02)
The acetone extracts of the root bark and stem bark of Erythrina sacleuxii showed antiplasmodial activities against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium falciparum. Chromatographic ...