1. UCL School of Pharmacy, University College London, 29-39 Brunswick Square,
London, WC1N 1AX, U.K.
2. Department of Chemistry and
Biochemistry, Brigham Young University,
Provo, Utah 84602, United States
3. GlaxoSmithKline, Gunnels Wood Road, Stevenage,
Herts, SG1 2NY, U.K.
4. Medway
Sciences, University of Greenwich, Medway
Campus, Chatham Maritime,
Kent, ME4 4TB, U.K.