1. Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines
Road, La Jolla, California 92037, United States
2. Radiochemical Synthesis Group, Bristol-Myers Squibb, PO Box 4000, Princeton, New Jersey
08543, United States
3. Radiochemical
Synthesis Group, Bristol-Myers Squibb,
5 Research Parkway, Wallingford,
Connecticut 06492, United States