1. Department of Chemistry, University of Sheffield, Sheffield S10 2TN, U.K.
2. Department of Oncology and Metabolism, University of Sheffield, Sheffield S10 2TN, U.K.
3. Matt Tozer Consultancy, Bognor Regis PO21 1DY, U.K.
4. Sandexis Medicinal Chemistry Ltd., Sandwich, Kent CT13 9ND, U.K.
5. Rod Porter Consultancy, Ashwell, Hertfordshire SG7 5PG, U.K.
6. Concept Life Sciences, High Peak SK23 0PG, U.K.