1. Department
of Organic Chemistry, Faculty of Science, Charles University, Hlavova 2030, CZ-128 43 Prague 2, Czech Republic
2. Institute
of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo náměstí 2, CZ-166 10 Prague 6, Czech Republic
3. Department
of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic