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Updated: Jun 1, 2026
Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
[Flavonoids with special B-ring from Macrothelypteris viridifrons and their anti-proliferative effects on tumor cell]
Anhua Wei1, Guanghua Wu, Chaomei Xiong
1College of Pharmacy, Tongji Medical Center, Huazhong University of Science and Technology, Wuhan 430030, China. wah0716@yahoo.cn
Objective:
To study the chemical constituents of Macrothelypteris viridifrons and their anti-proliferative effects on tumor cell.
Method:
The compounds were isolated by column chromatography with silica gel, C18 reverse-phase silica gel, sephadex LH-20, and their structures were elucidated on the basis of physiochemical propertities and spectral analysis. The antitumor activities of all compounds were tested with MOLT4, Hep G2, A-549, MCF-7, HT-29, PC-3 tumor cell lines.
Result:
Five compounds were isolated and identified as protoapigenone (1), protoapigenin (2), protoapigenin-4'-O-beta-D-glucopyanoside (3), 5,7-dihydroxy-2-(1,2-isopropyldioxy-4-oxo-cyclohex-5-enyl) -chromen-4-one (4), 5,7-dihydroxy-2-(1-hydroxy-2,6-dimethoxy-cyclohex-4-oxo) -chromen-4-one (5), respectively.
Conclusion:
All compounds were obtained from this plant for the first time. Compounds 1, 4 and 5 showed strong anti-proliferative effects on six tumor cells, which were in concentration-dependent manner.
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