1. Department of Chemistry, BioScience Research Collaborative, Rice University, 6100 Main Street, Houston, Texas 77005, United States
2. Laboratory of Natural Products Synthesis & Bioorganic Chemistry, Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research “Demokritos”, 153 10 Agia Paraskevi, Greece
3. Abbvie Stemcentrx, LLC, 450 East Jamie Court, South San Francisco, California 94080, United States