1. Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences, Flemingovo nam. 2; CZ-16610 Prague 6 Czech Republic
2. Institute of Molecular and Translational Medicine; Faculty of Medicine and Dentistry; Palacky University and University Hospital in Olomouc, Hněvotínská 5; CZ-775 15 Olomouc Czech Republic
3. Department of Organic Chemistry; Faculty of Science; Charles University in Prague, Hlavova 8; CZ-12843 Prague 2 Czech Republic