1. Department of Inorganic and Analytical Chemistry, NMR Group, Budapest University of Technology and Economics, H-1111 Budapest, Hungary
2. Institute of Biophysics, Biological Research Centre, Szeged H-6726, Hungary
3. Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts 02115, United States
4. Servier Research Institute of Medicinal Chemistry (SRIMC), H-1031 Budapest, Hungary