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