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Updated: Aug 30, 2026

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
[Studies on flavonoid constituents of Caragana intermediia]
Jiao Shi1, Bo Chen, Zhi-hua Sun
1Department of Chemistry of Natural Product, School of Pharmacy, Fudan University, Shanghai 200032, China.
Aim:
To study the chemical constituents of Caragana intermedia.
Methods:
The compounds were separated by chromatography methods, their structures were identified by spectral analysis.
Results:
Ten compounds were isolated and identified as 5,7,4'-trihydroxy-3,3'-dimethoxyflavone (1), 3,5,7,8,4'-pentahydroxy-3'-methoxyflavone(2), puercetin(3), limocitrin(4), 5,7,3',4'-tetrahydroxy-3-methoxyflavone(5), 7,3',5'-trihydroxyflavanone(6), 5,7,3',4'-tetrahydroxy-3,8-dimethoxyflavone(7), butein(8), liquiritigenin(9) and 5,7,4'-trihydroxy-3,8-dimethoxyflavone(10).
Conclusion:
Compound 6 is a new compound and the others were obtained from this plant for the first time.
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