1. Department
of Microbial Natural Products (MINS), Department of Microbial Natural Products (MINS), Helmholtz Institute for Pharmaceutical Research Saarland (HIPS) - Helmholtz Centre for Infection Research (HZI) and Institute for Pharmaceutical Biotechnology, Saarland University, 66123 Saarbrücken, Germany
2. Collaborative Mass Spectrometry Innovation Center, Skaggs
School of Pharmacy and Pharmaceutical Sciences, University of California, San
Diego, California 92093, United States