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Updated: Aug 19, 2026
Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
[Studies on the flavonoid constituents in herb of Eremosparton songoricum]
1State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, The Chinese Academy of Science, Lanzhou 730000, China.
Objective:
To study the chemical constituents from Eremosparton songoricum.
Method:
The compounds were isolated with silica gel column chromatography and the structures of these compounds were elucidated by means of spectral analysis.
Result:
The seven compounds were identified as: 5,7,4'-trihydroxyflavone (apigenin) (I), 5-hydroxy-7,4'-dimethoxyflavone (II), 5,7-dihydroxy-3',4'-dimethoxyflavone (III), 5,7-dihydroxy-4'-methoxyflavone (acacetin) (IV), 5,7,4'-trihydroxy-3'-methoxyflavone (chrysoeriol) (V), 5,6,3',4'-tetrahydroxy-7-methoxyflavone (pedalitin) (VI) and 5,4'-dihydroxy-7,3'-dimethoxyflavone-4'-O-D-glucoside (flavogadorinin) (VII).
Conclusion:
These constituents were obtained from E. songoricum for the first time.
