1. Discovery & Preclinical Sciences, Process & Analytical Chemistry, Structure Elucidation Group, Merck & Co. Inc., Rahway, New Jersey 07065, United States
2. Discovery & Preclinical Sciences Process & Analytical Chemistry Structure Elucidation Group, Merck & Co. Inc., Kenilworth, New Jersey 07033, United States
3. Discovery & Preclinical Sciences Process & Analytical Chemistry Structure Elucidation Group, Merck & Co. Inc., Summit, New Jersey 07901, United States
4. Servei
de Ressonància Magnètica Nuclear and Departament de
Química, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain