SINAPSE experts from around Scotland have developed ten online modules designed to explain medical imaging. They are freely available and are intended for non-specialists. **Unfortunately these do not currently work in browsers**

Edinburgh Imaging Academy at the University of Edinburgh offers the following online programmes through a virtual learning environment:

Neuroimaging for Research MSc/Dip/Cert

Imaging MSc/Dip/Cert

PET-MR Principles & Applications Cert

Applied Medical Image Analysis Cert

Online Short Courses

The first synthetic studies on pestalotiopsin A. A stereocontrolled approach to the functionalised bicyclic core

Author(s): D. Johnston, E. Couche, D. J. Edmonds, K. W. Muir, D. J. Procter

dPestalotiopsin A is a structurally unique, caryophyllene-type sesquiterpene which has shown immunosuppressive activity and cytotoxicity in preliminary assays. A stereocontrolled approach to the functionalised 2-oxabicyclo[3.2.0]-heptane core of pestalotiopsin A is described. This constitutes the first synthetic studies on pestalotiopsin A. Our approach includes a samarium(II)-mediated 4-exo-trig cyclisation and a trans-lactonisation process triggered by the addition of alkylytterbium reagents to a cyclobutanone intermediate. Further manipulation provides access to advanced intermediates which are excellent precursors for the future construction of the final ring of the target.

Full version: Available here

Click the link to go to an external website with the full version of the paper

ISBN: 1477-0520
Publication Year: 2003
Periodical: Organic & Biomolecular Chemistry
Periodical Number: 2
Volume: 1
Pages: 328-337
Author Address: