1. Department of Organic Chemistry
2. Lobachevsky State University of Nizhni Novgorod
3. Nizhni Novgorod 603950
4. Russia
5. Department für Chemie
6. Aix-Marseille Université
7. Marseille
8. France
9. Laboratory of Integrative Structural and Chemical Biology, Institut Paoli-Calmettes
10. Department of Pediatric Hematology/Oncology
11. 50735 Köln
12. Germany
13. Universität zu Köln
14. Köln