1. WestCHEM,
Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K.
2. GlaxoSmithKline Medicines Research Centre, Gunnels Wood Road, Stevenage SG1 2NY, U.K.
3. AstraZeneca R&D, The Darwin Building, Milton Road, Milton, Cambridge CB4 0FZ, U.K.