1. Process Research and Development, Bristol-Myers Squibb Pharmaceutical Research Institute, 1 Squibb Drive, P.O. Box 191, New Brunswick, New Jersey 08903-0191, Process Research and Development, Bristol-Myers Squibb Pharmaceutical Research Institute, P.O. Box 4000, Princeton, New Jersey 08543-4000, and Discovery Chemistry, Bristol-Myers Squibb Pharmaceutical Research Institute, P.O. Box 4000, Princeton, New Jersey 08543-4000