1. Department of Pharmacy Pharmaceutical and Medicinal Chemistry Saarland University Campus C2 3 66123 Saarbrücken Germany
2. Department of Biosciences and Christian Doppler Laboratory for Innovative Tools for Biosimilar Characterization Division of Structural Biology University of Salzburg Billrothstrasse 11 5020 Salzburg Austria
3. Department of Drug Design and Optimization Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Centre for Infection Research (HZI) Campus E8 1 66123 Saarbrücken Germany
4. Department of Pharmacy Saarland University Campus E8 1 66123 Saarbrücken Germany
5. Department of Microbial Natural Products Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) Helmholtz Centre for Infection Research (HZI) Campus E8 1 66123 Saarbrücken Germany