1. Department of Chemistry of Bioactive Nitrogen-Containing Heterocyclic Bases V. P. Kukhar Institute of Bioorganic Chemistry and Petrochemistry National Academy of Sciences of Ukraine Murmanska st. 1 02094 Kyiv Ukraine
2. Laboratoire COBRA INSA Rouen Normandie Bâtiment IRCOF, rue Tesnière 1 76821 Mont Saint-Aignan Cedex France
3. Department of General Chemistry and Chemistry of Materials Yuriy Fedkovych Chernivtsi National University Kotsyubynsky st. 2 58012 Chernivtsi Ukraine