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Updated: Aug 22, 2026

Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
Flavonoids and andrographolides from Andrographis paniculata
Y Koteswara Rao1, G Vimalamma, C Venkata Rao
1Department of Applied Chemistry, Chaoyang University of Technology, 168 Gifeng E. Road, Wufeng, Taichung 413, Taiwan.
Abstract:
Two flavonoids, identified as 5,7,2',3'-tetramethoxyflavanone and 5-hydroxy-7,2',3'-trimethoxyflavone, as well as several other flavonoids, andrographolide diterpenoids, and polyphenols, were obtained from the phytochemical investigation of the whole plant of Andrographis paniculata, a well known medicinal plant. The structures of these compounds were established with the aid of spectroscopic methods, including analysis by 2D NMR spectroscopy.
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