1. Structure Elucidation Group, Process and Analytical Research and Development, Merck & Co., Inc., 2000 Galloping Hill Road, Kenilworth, NJ 07033, USA.
2. Structure Elucidation Group, Process and Analytical Research and Development, Merck & Co., Inc., 33 Avenue Louis Pasteur, Boston, MA 02115, USA.
3. Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, 240 Longwood Avenue, Boston, MA 02115, USA.
4. Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Unit 3060, Storrs, CT 06269, USA.
5. Van’t Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, Netherlands.
6. Structure Elucidation Group, Process and Analytical Research and Development, Merck & Co., Inc., 126 East Lincoln Avenue, Rahway, NJ 07065, USA.