1. Department
of Chemistry, Occidental College, Los Angeles, California 90041, United States
2. Department
of Chemistry, The Scripps Research Institute, La Jolla, California 92037, United States
3. Department
of Food Science and Engineering, Ewha Womans University, Seou 03760, Korea
4. School
of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
5. Department
of Molecular and Experimental Medicine, The Scripps Research Institute, La Jolla, California 92037, United States