1. Medicinal Inorganic Chemistry Group, Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
2. Life Sciences Division, TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia V6T 2A3, Canada
3. Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
4. Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum Dresden─Rossendorf, P.O. Box 51 01 19, D-01314 Dresden, Germany