1. Program for Collaborative Research in the Pharmaceutical Sciences and Department of Medicinal Chemistry and Pharmacognosy, College of Pharmacy, University of Illinois at Chicago, Chicago, Illinois 60612, Institut Malgache de Recherches Appliquées, B.P. 3833 101-Antananarivo, Madagascar, Biotechnology, GlaxoSmithKline Medicines Research Centre, Stevenage, Herts., SG1 2NY, U.K., Department of Cell Biology, GlaxoSmithKline Inc., Research Triangle Park, North Carolina 27709, and Frederick Cancer Research...