1. Department of Chemistry, Bagley Hall, University of Washington, 98195-1700, Seattle, WA, USA
2. Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 166 10, Prague, Czech Republic
3. Laboratory of Biomolecular Recognition, Institute of Biotechnology, Czech Academy of Sciences, 252 50, Vestec, Czech Republic
4. Valspar Corporation, Minneapolis, MN, USA