1. Drug Discovery Program, Department of Medicinal Chemistry and Pharmacognosy; College of Pharmacy; University of Illinois at Chicago; Chicago IL 60612 USA
2. Psychogenics Inc.; Tarrytown NY 10591 USA
3. Center for Developmental Therapeutics; Feinberg School of Medicine; Northwestern University; Evanston IL 60208 USA
4. Department of Pharmacology; Feinberg School of Medicine; Northwestern University; Evanston IL 60208 USA
5. Department of Immunology and Division of Oncology Research; College of Medicine; Mayo Clinic; 13-42 Guggenheim Rochester MN 55905 USA