1. Department of Synthetic Molecule Process Chemistry, Genentech USA, Inc., 1 DNA Way, South San Francisco, California 94080, United States
2. Department of Process Chemistry & Catalysis, Synthetic Molecules Technical Development, F. Hoffmann-La Roche AG, Grenzacherstrasse 124, CH-4070 Basel, Switzerland
3. Department of Discovery Chemistry, Genentech USA, Inc., 1 DNA Way, South San Francisco, California 94080, United States