1. Scientific Technological Center of Organic and Pharmaceutical Chemistry of National Academy of Science of Republic of Armenia; Institute of Fine Organic Chemistry of A.L. Mnjoyan; Ave. Azatutyan 26 Yerevan 0014 Armenia
2. Dipartimento di Chimica G. Ciamician; Alma Mater Studiorum-Università di Bologna; Via F. Selmi 2 Bologna 40126 Italy
3. Aristotle University of Thessaloniki; School of Pharmacy; Thessaloniki 54124 Greece