1. Department of Physical Organic Chemistry, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
2. Faculty of Materials Science and Applied Chemistry, Riga Technical University, Paula Valdena 3, LV-1048 Riga, Latvia
3. Laboratory of Pharmaceutical Pharmacology, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
4. Faculty of Pharmacy, Rīga Stradinš University, Dzirciema 16, LV-1007 Riga, Latvia
5. Organic Synthesis Group, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia
6. Laboratory of Membrane Active Compounds and β-Diketones, Latvian Institute of Organic Synthesis, Aizkraukles 21, LV-1006 Riga, Latvia