1. Laboratory of Organic Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
2. Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
3. Department of Pharmaceutical Chemistry, School of Pharmacy, Faculty of Health Sciences,, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
4. Slovenian NMR Centre, National Institute of Chemistry, SI-1001 Ljubljana, Slovenia
5. Laboratory of Physical Chemistry, Department of Chemistry, National and Kapodistrian University of Athens, Panepistimioupolis Zografou, 11571 Athens, Greece
6. Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vassileos Constantinou Avenue, 11635 Athens, Greece