1. Process Research and Development, Merck & Co., Inc., P.O. Box 2000, Rahway, New Jersey 07065, United States
2. Department of Chemistry (retired), University of California Davis, Davis, California 95616, United States
3. Chemical and Biological Sciences, Montgomery College, Takoma Park, Maryland 20912, United States
4. Department of Chemistry and Biochemistry, State University of New York Brockport, Brockport, New York 14420, United States
5. Department of Chemistry, Saint Peter’s University, Jersey City, New Jersey 07306, United States
6. A. R. Smith Department of Chemistry and Fermentation Sciences (retired), Appalachian State University, Boone, North Carolina 28608, United States