1. Department of Pharmaceutical Development, Allegan plc, Irvine, California 92612, United States
2. Department of Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
3. BioTherapeutics Pharmaceutical Sciences, Pfizer, Chesterfield, Missouri 63017, United States
4. Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, United States