Affiliation: | 1. Institute of Organic Chemistry and Biochemistry, Academy of Sciences, Flemingovo náměstí 2, 16610 Prague 6 (Czech Republic) http://hanicka.uochb.cas.cz/~bour;2. Present address: Department of Chemistry, School of Science and Technology, Kwansei Gakuin University, 21 Gakuen, Sanda, Hyogo 6691337 (Japan) |