1. Department of Chemistry, Colorado State University, Fort Collins, Colorado 80523, University of Colorado Cancer Center, Aurora, Colorado 80045, Division of Hematologic Neoplasia, Dana-Farber Cancer Institute, Boston, Massachusetts 02115, Chemical Biology Program, Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, Howard Hughes Medical Institute, Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, and Walther Cancer Research Center and Department of...