1. Shifa Biomedical, 1 Great Valley Parkway, Suite 8, Malvern, Pennsylvania 19355, United States
2. Department of Chemistry and Department of Biochemistry and Molecular Biology, University of Massachusetts, 701 Lederle Graduate Research Tower, 710 North Pleasant Street, Amherst, Massachusetts 01003-9336, United States
3. Department of Pharmaceutical Chemistry, University of California San Francisco, 600 16th Street, San Francisco, California 94158-2517, United States