1.
Phytochemistry
; 67(10): 978-83, 2006 May.
Article
in English
| MEDLINE
| ID: mdl-16624351
ABSTRACT
Five acylated 5,7,2',6'-oxygenated flavone glycosides along with the known 5,2',6'-trihydroxy-7-methoxyflavone-2'-O-beta-d-glucopyranoside have been isolated from the whole plant of Andrographis alata. The structures of the compounds were established from spectral (mainly 1D and 2D NMR) and chemical studies.
Subject(s)
Andrographis/chemistry , Flavones/chemistry , Glycosides/chemistry , Acylation , Flavones/isolation & purification , Flavones/metabolism , Flavonoids/chemistry , Flavonoids/isolation & purification , Glycosides/isolation & purification , Glycosides/metabolism , Nuclear Magnetic Resonance, Biomolecular
2.
Phytochemistry
; 65(16): 2387-90, 2004 Aug.
Article
in English
| MEDLINE
| ID: mdl-15381012
ABSTRACT
Three deoxypreussomerins, palmarumycins CP1, JC1 and JC2, have been isolated from a collection of the stems of Jatropha curcas. The second and third compounds are antibacterial constituents which were characterized from spectral evidence. The X-ray crystallographic structure of palmarumycin JC1 was also studied. Deoxypreussomerins have been obtained here from a plant source in appreciable quantities.
