1. Institute for Research in Biomedicine (IRB Barcelona), Chemistry and Molecular Pharmacology Program, Barcelona Institute of Science and Technology (BIST); Barcelona 08028 Spain
2. Research Group of Organic, Department of Chemistry; Vrije Universiteit Brussel; Brussels 1050 Belgium
3. Research Group of Organic, Department of Bioengineering Sciences; Vrije Universiteit Brussel; Brussels 1050 Belgium
4. Organic Synthesis; University of Antwerp; Antwerp B-2020 Belgium
5. School of Chemistry and BSRC; University of St Andrews; St Andrews KY16 9ST United Kingdom
6. Department of Inorganic and Organic Chemistry; University of Barcelona; Barcelona 08028 Spain