1. Department of Pharmacy University of Salerno via Giovanni Paolo II 132 84084 Fisciano (SA) Italy
2. Nuffield Department of Medicine Oxford University OX3 7DQ Oxford UK
3. Division of Biological Chemistry and Drug Discovery School of Life Sciences University of Dundee Dow Street Dundee DD1 5EH, Scotland UK
4. Discovery Technology Research Laboratories Ono Pharmaceutical Co., Ltd. 618-8585 Osaka Japan
5. Oncology R&D Tumour Targeted Delivery AstraZeneca QMB Innovation Centre 42 New Road London E1 2AX UK