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 & MIT, Cambridge, Massachusetts 02142, Howard Hughes Medical Institute, Chemistry & Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, and Walther Cancer Research Center and Department of Chemistry...