1. Institut des Biomolécules Max Mousseron IBMM, CNRS ENSCM Faculté de Pharmacie Université de Montpellier 15 avenue Charles Flahault, BP 14491 34093 Montpellier Cedex 05 France
2. Institute of Organic Chemistry and Biochemistry Czech Academy of Sciences Flemingovo náměstí 2 16610 Prague 6 Czech Republic
3. Department of Organic Chemistry Faculty of Science Charles University Hlavova 8 12843 Prague 2 Czech Republic