1. Chemical
Genomics Centre of the Max-Planck Society, Otto-Hahn-Str. 11, 44227 Dortmund, Germany
2. Institute
for Inorganic Chemistry, University of Duisburg Essen, Universitätsstrasse 7, 45141 Essen, Germany
3. Division
of Organic Chemistry, Vrije Universiteit Amsterdam, De Boelelaan 1108, 1081 HZ Amsterdam, Netherlands