1. Laboratory of Organic Chemistry, Chemistry Department Aristotle University of Thessaloniki Thessaloniki 54124 Greece
2. Laboratory of Biohemistry Chemistry Department Aristotle University of Thessaloniki Thessaloniki 54124 Greece
3. National Hellenic Research Foundation Institute of Chemical Biology Athens 11653 Greece
4. Department of Pharmaceutical Chemistry School of Pharmacy, Faculty of Health Sciences Aristotle University of Thessaloniki Thessaloniki 54124 Greece