1. WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, Scotland, UK
2. Chemical Development, Pharmaceutical Technology and Development, Operations, AstraZeneca, Macclesfield SK10 2NA, UK
3. Syngenta, Jealott′s Hill International Research Centre, Bracknell, Berkshire, RG426EY, UK