1. The Tomsk Polytechnic University 634050 Tomsk Russia
2. Department of Chemistry Southern Methodist University Dallas, TX 75275 USA
3. Institute for Medicinal Chemistry Helmholtz Zentrum München German Research Center for Environmental Health Schneiderberg 1b 30167 Hannover Germany
4. Institute of Organic Chemistry and Center of Biomolecular Drug Research (BMWZ) Leibniz University Hannover Schneiderberg 1b 30167 Hannover Germany
5. Department of Chemistry and Biochemistry University of Minnesota Duluth Duluth Minnesota 55812 USA