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Divergent Total Syntheses of Flavonoid Natural Products Isolated from Rosa rugosa and Citrus unshiu


Type

Article

Change log

Authors

Sum, TJ 
Sum, TH 
Galloway, WRJD 
Spring, DR 

Abstract

The concise and step-economical total syntheses of three hydroxyaurones and one polymethoxyflavone from readily available starting materials is described. A divergent synthetic strategy is employed, which centres on a common chalcone scaffold from which both the aurone and flavone frameworks can be accessed through the use of different oxidative cyclisation methods. These are the first reported total syntheses of these biologically interesting compounds.

Description

Keywords

flavonoids, hydroxyaurones, chalcones, divergent, total synthesis, natural products

Journal Title

Synlett

Conference Name

Journal ISSN

0936-5214
1437-2096

Volume Title

27

Publisher

Georg Thieme Verlag KG
Sponsorship
Engineering and Physical Sciences Research Council (EP/J016012/1)
Royal Society (WM150022)
European Research Council (279337)
Engineering and Physical Sciences Research Council (EP/K039520/1)
We thank the Cambridge Commonwealth Trust for the awards of scholarships to T.J.S. and T.H.S. The research leading to these results has received funding from the European Research Council under the European Union’s Seventh Framework Programme (FP7/2007– 2013)/ERC grant agreement no. [279337/DOS]. The authors also thank AstraZeneca, the European Union (EU), the Engineering and Physical Sciences Research Council (EPSRC), the Biotechnology and Biological Sciences Research Council (BBSRC), the Medical Research Council (MRC), and the Wellcome Trust for funding.