Flavonoids of Melaleuca quinquenervia.
From the leaves of Melaleuca quinquenervia (Clav.) S. T. Blake, the new flavonoid 5,7,3',4'-tetrahydroxyflavone 2'-O-beta-D-glucopyranuronide, as well as eight known flavonol glycosides have been isolated and characterized. The structures were established by chromatography, chemical degradation and UV spectroscopy and confirmed by ESI-MS and NMR spectroscopy. This is the first report on the isolation and identification of these flavonoids in the genus Melaleuca.
el-Toumy
S A
SA
Chemistry of Tannins and Proteins Department, National Research Centre, Tahrir Str., Dokki, Cairo, Egypt.
Marzouk
M S
MS
Moharram
F A
FA
Aboutabl
E A
EA
D005419:Flavonoids / Q000032:analysis* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D021241:Spectrometry, Mass, Electrospray Ionization; D013056:Spectrophotometry, Ultraviolet; D020947:Tea Tree Oil / Q000032:analysis*
C421985:5,7,3',4'-tetrahydroxyflavone 2'-O-glucopyranuronide; D005419:Flavonoids; D020947:Tea Tree Oil