1. Drug Design and Synthesis Section,
Chemical Biology Research Branch, NIDA and NIAAA, National Institutes of Health, Department of Health and Human Services, 5625 Fishers Lane, Room 4N03, Bethesda, Maryland 20892-9415, United
States
2. Center for Biomolecular
Science
and Engineering, Naval Research Laboratory (NRL), Washington, D.C. 20375, United States