Issue 19, 2009
From the journal:

Organic & Biomolecular Chemistry

A divergent strategy to the withasomnines†

Robert S. Foster,a   Jianhui Huang,a   Jérôme F. Vivat,a   Duncan L. Brownea  and  Joseph P. A. Harrity*a  

* Corresponding authors

a Department of Chemistry, University of Sheffield, Sheffield, UK
E-mail: j.harrity@shef.ac.uk
Fax: +44 (0) 1142 229346
Tel: +44 (0) 1142 229496

Abstract

A concise synthesis of three members of the withasomnine family of natural products is reported. The synthesis features a regioselective sydnone–alkynylboronate cycloaddition followed by Suzuki cross coupling and silyl group removal, and marks the first divergent approach to this family of pyrazole based natural products.

Graphical abstract: A divergent strategy to the withasomnines

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Article information

DOI
https://doi.org/10.1039/B910632D
Article type
Paper
Submitted
29 May 2009
Accepted
22 Jun 2009
First published
27 Jul 2009

Org. Biomol. Chem., 2009,7, 4052-4056

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A divergent strategy to the withasomnines

R. S. Foster, J. Huang, J. F. Vivat, D. L. Browne and J. P. A. Harrity, Org. Biomol. Chem., 2009, 7, 4052 DOI: 10.1039/B910632D

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