1. Department of General Chemistry (ALGC)Vrije Universiteit Brussel (VUB) Pleinlaan 2 1050 Elsene Brussels Belgium
2. Molecular Design and SynthesisDepartment of Chemistry, KU Leuven, Celestijnenlaan 200F Leuven Chem&Tech, box 2404 3001 Leuven Belgium
3. Research group of Organic Chemistry (ORGC), Departments of Bio-engineering Sciences and ChemistryVrije Universiteit Brussel (VUB) Pleinlaan 2 1050 Elsene Brussels Belgium