1. Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI); Department of Drug Design and Optimization; Campus Building E8.1 66123 Saarbrücken Germany
2. Stratingh Institute for Chemistry; University of Groningen; Nijenborgh 7 9747AG Groningen The Netherlands
3. Department of Pharmacy; Saarland University; Saarbrücken, Campus Building E8.1 66123 Saarbrücken Germany
4. Groningen Biomolecular Sciences and Biotechnology Institute; University of Groningen; Nijenborgh 4 9747AG Groningen The Netherlands
5. Department of Biochemistry; Bogor Agricultural University; Dramaga 16680 Bogor Indonesia