1. Department of Chemistry Astrakhan State Technical University 16 Tatischeva str. Astrakhan 414056 Russia
2. G.A. Razuvaev Institute of Organometallic Chemistry Russian Academy of Sciences 49 Tropinina str. 603137 Nizhny Novgorod Russia
3. Gause Institute of New Antibiotics 11/1 Bolshaya Pirogovskaya str. Moscow 119021 Russian Federation
4. Blokhin National Medical Research Center of Oncology 24 Kashirskoye Shosse Moscow 115478 Russian Federation