1. Departments of Chemistry and Medicinal Chemistry, Purdue University, 560 Oval Drive, 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
5. Center
for Clinical Sciences, National Center for Global Health and Medicine, Tokyo 162-8655, Japan