1. Purdue Institute for Drug Discovery, 720 Clinic Drive, West Lafayette Indiana 47907, United States
2. Discipline of Chemistry, Centre for Biosciences and Biomedical Engineering, Indian Institute of Technology, Indore, Madhya Pradesh, 453552, India
3. Endocyte, Inc., 3000 Kent Avenue, Suite A1-100, West Lafayette, Indiana 47906, United States
4. Department of Biological Sciences, Bindley Bioscience Center, Purdue University, West Lafayette, Indiana 47907, United States