1. Institute of Pharmacy and Medical Chemistry, Pirogov Russian National Research Medical University, Ostrovityanov St., Bl. 1, 117997 Moscow, Russia
2. Ufa Institute of Chemistry, Oktyabrya Aven., 71, 450054 Ufa, Russia
3. A.N.Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, Bl. 1, 119334 Moscow, Russia
4. D.I. Mendeleev Russian University of Chemical Technology, Miusskaya Sq., 9, 125047 Moscow, Russia
5. The Open University, Walton Hall, Milton Keynes MK7 6BJ, UK