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Updated: Jul 11, 2026
Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
[Studies on flavonoids of Eupatorium odoratum L]
Jing-Quan Yuan1, Jun-Shan Yang, Jian-Hua Miao
1Guangxi Institute of Medicinal Plant, Nanning 530023, China.
Objective:
To investigate the flavonoid constituents from aerial parts of Eupatorium odoratum L. systematically.
Methods:
The constituents of the EtoAc-soluble portions of the 95% ethanol extraction were isolated and purified by silica gel and sephadex LH-20 chromatography. Their structures were elucidated on the basis of physicochemical properties and spectral analysis.
Results:
Eight compounds were isolated and identified as kaempferol-3-methoxy (I), rhamnetin (II), tamarixetin (III), quercetin (IV), kaempferol (V), apigenin (VI), luteolin (VII), dihydrokaempferide (VIII).
Conclusion:
Compound I , II and VI were isolated for the first time from genus Eupatorium, and VIII which is rare flavonoid was obtainted for the first time from family Compositae.
