1. Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece, Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001 Leuven, Belgium, Biomolecular Architecture, Department of Chemistry, Katholieke Universiteit Leuven, Celestijnenlaan 200F, B-3001, Leuven, Belgium, and Ministry of Development, Department of Development and Technology, Messogion 14-16, 115 10 Athens, Greece