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Biosynthesis of a Flavonol from a Flavanone by Establishing a One-pot Bienzymatic Cascade
Published on: August 14, 2019
Flavonoids from Tephrosia calophylla
Ramireddy V Narahari Reddy1, Shaik I Khalivulla, Bandi A K Reddy
1Natural Products Division, Department of Chemistry, Sri Venkateswara University, Tirupati 517502, India.
Abstract:
Two new flavanones, (2S)-5-hydroxy-7,4'-di-O-(gamma,gamma-dimethylallyl)flavanone (1) and 6-hydroxy-E-3-(2,5-dimethoxybenzylidine)-2',5'-dimethoxyflavanone (2), together with three known compounds, tephrowatsin C, afrormosin and kaempferol 3-O-beta-D-glucopyranoside were isolated from the roots of Tephrosia calophylla. The structures of 1 and 2 were established by extensive 2D NMR spectral studies.
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