1. The Scripps Research Institute (TSRI); North Torrey Pines Road La Jolla CA 92037 USA
2. Asymchem Laboratories (Tianjin) Co., Ltd.; TEDA; Tianjin 300457 P.R. China
3. Discovery Chemistry; Bristol-Myers Squibb; 350 Carter Road Hopewell NJ 08540 USA
4. Chemical Development; Bristol-Myers Squibb; One Squibb Drive New Brunswick NJ 08903 USA