1. Medicinal
Chemistry, School of Pharmacy and Pharmaceutical Sciences, Cardiff University, King Edward VII Avenue, Cardiff CF10 3NB, U.K.
2. Department
of Haematology, School of Medicine, Cardiff University, Heath Park, Cardiff CF14 4XN, U.K.
3. Department
of Biochemistry, University of Wisconsin—Madison, 433 Babcock Drive, Madison, Wisconsin 53706-1544, United States