1.
Phytochemistry
; 56(4): 353-7, 2001 Feb.
Article
in English
| MEDLINE
| ID: mdl-11249100
ABSTRACT
Two biflavonoids namely, 2",3"-dihydroochnaflavone and 2",3"-dihydroochnaflavone 7"-O-methyl ether, and a flavonoid glycoside, 6-gamma,gamma-dimethylallyltaxifolin 7-O-beta-D-glucoside were isolated from the leaves of Ochna integerrima.
Subject(s)
Flavonoids/isolation & purification , Glucosides/isolation & purification , Plants, Medicinal/chemistry , Flavonoids/chemistry , Glucosides/chemistry , Magnetic Resonance Spectroscopy , Plant Leaves/chemistry , Spectrometry, Mass, Fast Atom Bombardment , Thailand
2.
Planta Med
; 64(1): 70-2, 1998 Feb.
Article
in English
| MEDLINE
| ID: mdl-9491769
ABSTRACT
Five xanthones from the bark of Garcinia cowa, namely 7-O-methylgarcinone E (1), cowanin (2), cowanol (3), cowaxanthone (4), and beta-mangostin (5), were found to possess in vitro antimalarial activity against Plasmodium falciparum with IC50 values ranging from 1.50 to 3.00 micrograms/ml. Complete 1H- and 13C-NMR assignments of these compounds are also reported.
