1. Department of Pharmacology
and The Vanderbilt Ingram Cancer Center, ‡The Vanderbilt Center
for Neuroscience Drug Discovery, Vanderbilt University Medical Center, §Department of Chemistry, ∥The Vanderbilt Institute
of Chemical Biology, ⊥The Vanderbilt Mass Spectrometry Research Center, and #Department of Biochemistry, Vanderbilt University, Nashville, Tennessee 37232, United States