1. Institute of Organic Chemistry
and Biochemistry, Academy of Sciences of the Czech Republic, Flemingovo Náměstí 2, 16610 Prague 6, Czech
Republic
2. Organic Chemistry and Biochemistry, Leibniz-Institut für Molekulare Pharmakologie (FMP), Robert-Roessle-Straße 10, 13125 Berlin, Germany
3. Organisch-Chemisches
Institut, International NRW Graduate School of Chemistry, Westfälische Wilhelms-Universität Münster, Corrensstraße 40, 48149 Münster, Germany