1. Taras Shevchenko National University of Kyiv, Chemistry Department, Volodymyrska 64, 01601 Kyiv, Ukraine
2. Enamine Limited, Chervonotkatska 78, 01103 Kyiv, Ukraine
3. Institute
of Chemistry, Technical University of Berlin, Müller-Breslau-Strasse 10, 10623 Berlin, Germany
4. Lehrstuhl
für Organische Chemie I, Technische Universität München, Lichtenbergstrasse 4, 85747 Garching, Germany