1. Departments of Chemistry and
Medicinal Chemistry, Purdue University, West Lafayette, Indiana 47907,
United States
2. Department of Biology, Molecular
Basis of Disease, Georgia State University, Atlanta, Georgia 30303,
United States
3. Departments of Hematology and
Infectious Diseases, Kumamoto University Graduate School of Medical
and Pharmaceutical Sciences, Kumamoto 860-8556, Japan;
4. Experimental Retrovirology Section,
HIV and AIDS Malignancy Branch, National Cancer Institute, National
Institutes of Health, Bethesda, Maryland 20892, United States