1. Department of Physiology and Pharmacology, Wake Forest University School of Medicine, Medical Center Boulevard, Winston-Salem, North Carolina 27517, Department of Medicinal Chemistry and Natural Products, School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, Kucera Pharmaceutical Company, 111 N. Chestnut Street, Suite 104, Victoria Hall, Winston-Salem, North Carolina 27101, and Department of Internal Medicine, Section on Hematology/Oncology, Wake Forest...