ANTHONY B. EVNIN, Ph.D.

Dr. Evnin has served as a director since May 1997. Dr. Evnin has been a general partner at Venrock Associates, a venture capital limited partnership, since 1975. Dr. Evnin also serves on the boards of directors of a number of companies, including Coley Pharmaceutical Group, Inc., Infinity Pharmaceuticals, Inc., Memory Pharmaceuticals Corp., Pharmos Corporation, Renovis, Inc. and Sunesis Pharmaceuticals Incorporated, biopharmaceutical companies which are public, and several private companies. Dr. Evnin received his Ph.D. in chemistry from the Massachusetts Institute of Technology and his A.B. from Princeton University.