1. Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, Department of Structural Molecular Science, Institute of Molecular Science, Okazaki, Myodaiji, 444 Japan, Los Alamos National Laboratory, CST-4 MS G758, Los Alamos, New Mexico 87545-0001, Department of Chemistry, Stanford University, Stanford, California 94305-5080, Department of Pharmaceutical Chemistry, School of Pharmacy, University of California, San Francisco, California 94143-0446, Department of...