[Flavones from flowers of Paulownia fortunei].
OBJECTIVE
To study the flavones of the flowers of Paulownia fortunei.


METHODS
The constituents were isolated by column chromatography and their structures were elucidated through spectroscopic analysis.


RESULTS
The compounds were identified as: 3'-O-methyldiplacol (1), 6-geranyl-3, 3', 5, 7-tetrahydroxy-4'-methoxy flavanone (2), homoeriodictyol (3), 5, 7, 4'-trihydroxy-3'-methoxy flavone (4), 3'-methoxyluteolin-7-O-beta-D-glucoside (5), apigenin-7-O-beta-D-glucoside (6), kaempferol-7-O-beta-D-glucoside (7), quercetin-3-O-beta-D-glucoside (8), kaempferol-3-O-beta-D-glucoside (9), quercetin-7-O-beta-D-glucoside (10), luteolin-7-O-beta-D-glucoside (11).


CONCLUSIONS
All these compounds were obtained from the flowers for the first time.
Zhang
Pei-fen
PF
School of Pharmaceutical Sciences, Lanzhou University, Lanzhou 730000, China.
Li
Chong
C
D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D035264:Flowers / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000737:chemistry*; D021241:Spectrometry, Mass, Electrospray Ionization
D047309:Flavones