1. A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilova Str., 28, 119991 Moscow, Russia
2. Department of Chemistry, Moscow State University, Leninskie gory, 1/3, Moscow 119991 Russia
3. Institute of Physiologically Active Compounds, Russian Academy of Sciences, Severny proezd, 1, Chernogolovka, Moscow region, 142432, Russia