1. Enamine Ltd. (www.enamine.net) Chervonotkatska Street 78 Kyiv 02094 Ukraine
2. V.P. Kukhar Institute of Bioorganic Chemistry & Petrochemistry NAS of Ukraine Murmanska Street 1 Kyiv 02660 Ukraine
3. Taras Shevchenko National University of Kyiv Volodymyrska Street 60 Kyiv 01601 Ukraine
4. Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstr. 40 48149 Münster Germany