1. N. N. Vorozhtsov Institute of Organic Chemistry SB RAS 9th Lavrentiev Avenue 630090 Novosibirsk Russian Federation
2. Institute of Chemistry Technische Universität Chemnitz 09107 Chemnitz Germany
3. Department of Chemistry and Pharmacy University of Erlangen-Nürnberg Nikolaus-Fiebiger-Str. 10 91058 Erlangen Germany