1. Department
of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, Glasgow G1 1XL, United Kingdom
2. GlaxoSmithKline,
Medicines Research Centre, Gunnels
Wood Road, Stevenage SG1
2NY, United Kingdom
3. School
of Chemistry, WestCHEM, University of Glasgow, Glasgow G12 8QQ, United Kingdom