1. Department
of Chemistry and RECETOX, Faculty of Science, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
2. Institute
for Organic Chemistry and Chemical Biology, Goethe-University Frankfurt, Max-von-Laue-Str. 9, 60438 Frankfurt, Germany
3. Department
of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, 5010 Malott
Hall, Lawrence, Kansas 66045, United States