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Updated: Aug 11, 2026

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
[Studies on the flavonoids in stem of Rhododendron anthopogonoide II]
1School of Pharmceutical Science, Yantai University, China.
Objective:
To further investigate the flavonoids of Rhododendron anthopogonoide.
Method:
The compounds were isolated and purified by Sephadex LH-20, polyamide and silica gel column chromatography. Their chemical structures were elucidated on the basis of physicochemical properties and spectral data.
Result:
Six compounds were isolated and identified as: taxifolin (I), guaijaverin (II), reynoutrin (III), quercitrin (IV), polystachoside (V) and quercetin-4'-O-beta-D-galactoside (VI).
Conclusion:
For the first time, compound VI was separated from Ericaceae plant, compounds II and V were isolated from Rhododendron plant, and compounds I and II were obtained from this plant.

