1. Institute of Inorganic Chemistry, University of Vienna, Währinger Strasse 42, A-1090 Vienna, Austria
2. Department of Chemistry, National University of Singapore, 3 Science Drive 2, 117543, Singapore
3. Drug Development Unit, National University of Singapore, 28 Medical Drive, 117546, Singapore
4. Institute of Physical Chemistry and Chemical Physics, Slovak Technical University of Technology, Radlinského 9, 81237 Bratislava, Slovak Republic
5. Institute of Organic Chemistry, Catalysis and Petrochemistry, Department of Organic Chemistry, Slovak Technical University of Technology, Radlinského 9, 81237 Bratislava, Slovak Republic
6. Department of Pharmacy, National University of Singapore, 3 Science Drive 2, 117543 Singapore