1. Roy and Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323, USA
2. Drug Hunter, Inc., 13203 SE 172nd Ave, Suite 166 PMB 2019, Happy Valley, Oregon 97086, USA
3. Department of Chemistry, University of Wisconsin–Madison, Madison, Wisconsin 53706, USA
4. Global Medicinal Chemistry, Discovery Research, AbbVie, Inc, North Chicago, Illinois 60064-1802, USA