1. Lilly Research Laboratories, Eli Lilly and Company, Indianapolis, Indiana 46285, Albany Molecular Research Inc., Albany, New York 12212, Centro de Investigación Lilly, S. A., Avda. de la Industria 30, 28108 Alcobendas, Madrid, Spain, and Piedmont Research Center, 3300 Gateway Centre, Morrisville, North Carolina 27560