Affiliation: | a Faculty of Chemistry, University of Gdańsk, Sobieskiego 18, 80-952 Gdańsk, Poland b Institute of Organic Chem., Pol. Acad. Sciences, Kasprzaka 44, 01-224 Warsaw, Poland c Faculty of Chemistry, University of Wroc?aw, Joliot-Curie 14, 50-383 Wroc?aw, Poland d Faculty of Chemistry, M. Curie-Sklodowska University, M. Curie Sklodowska 3, 20-031 Lublin, Poland |