1. Astex Pharmaceuticals, 436 Cambridge Science Park, Milton Road, Cambridge CB4 0QA, United Kingdom
2. Frontier Medicines, 151 Oyster Point Blvd., South San Francisco, California 94080, United States
3. Division of Medicinal Chemistry, Amsterdam Institute for Molecules, Medicines and Systems (AIMMS), Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, The Netherlands
4. Novartis Biomedical Research, Discovery Sciences, 4002 Basel, Switzerland