Affiliation: | 1. Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo 2, 166 10 Prague 6, Czech Republic;2. Department of Chemistry, Marquette University, P.O. Box. 1881, Milwaukee, Wisconsin 53201-1881, USA;3. Faculty of Applied Sciences, University of West Bohemia, Husova 11, 306 14 Pilsen, Czech Republic;4. Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Heyrovsky sq. 2, 162 06 Prague 6 , Czech Republic |