1. Department
of Chemistry and Applied Biosciences, ETH Zurich, Vladimir Prelog
Weg 2, 8093 Zurich, Switzerland
2. Department of Chemistry & Department of Chemical and Biological Engineering, University of Wisconsin—Madison, 1101 University Avenue, Madison, Wisconsin 53706, United States
3. Instituto
de Química, Universidad de Antioquia, Calle 70 No. 52-21, Medellín, Colombia
4. Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland
5. Centre
de RMN à Tres Hauts Champs, Institut de Sciences Analytiques, Université de Lyon (CNRS/ENS Lyon/UCB Lyon 1), 69100 Villeurbanne, France