1. Department of Chemistry and Biotechnology, School of Science, Tallinn University of Technology, Tallinn 12618, Estonia
2. Department of Drug Design and Pharmacology, University of Copenhagen, DK-2100 Copenhagen, Denmark
3. Laboratory of Steroids, Institute of Bioorganic Chemistry, National Academy of Sciences of Belarus, Minsk 220141, Belarus
4. National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia
5. Department of Chemistry, Queen’s University, Kingston, ON K7L 3N6, Canada