1. Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School and Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, United States
2. Chemical Biology and Therapeutics, Novartis Institutes for BioMedical Research, 4056 Basel, Switzerland
3. Oncology Research, Novartis Institutes for BioMedical Research, 4056 Basel, Switzerland
4. Global Discovery Chemistry, Novartis Institutes for BioMedical Research, 4056 Basel, Switzerland