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Updated: Jun 25, 2026

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
[Flavones from flowers of Paulownia fortunei]
1School of Pharmaceutical Sciences, Lanzhou University, Lanzhou 730000, China.
Objective:
To study the flavones of the flowers of Paulownia fortunei.
Method:
The constituents were isolated by column chromatography and their structures were elucidated through spectroscopic analysis.
Result:
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).
Conclusion:
All these compounds were obtained from the flowers for the first time.
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