Combining cross-metathesis and activity-based protein profiling: New β-lactone motifs for targeting serine hydrolases
作者:Kaddy Camara、Siddhesh S. Kamat、Celina C. Lasota、Benjamin F. Cravatt、Amy R. Howell
DOI:10.1016/j.bmcl.2014.11.038
日期:2015.1
beta-Lactones are a privileged structural motif as enzyme inhibitors and chemical probes, particularly for the inhibition of enzymes from the serine hydrolase class. Herein, we demonstrate that cross-metathesis (CM) of alpha-methylene-beta-lactones offers rapid access to structurally diverse, previously unexplored beta-lactones. Combining this approach with competitive activity-based protein profiling (ABPP) identified lead beta-lactone inhibitors/probes for several serine hydrolases, including disease-associated enzymes and enzymes of uncharacterized function. The structural diversity afforded by the alpha-methylene-beta-lactone scaffold thus expands the landscape of serine hydrolases that can be targeted by small-molecule inhibitors and should further the functional characterization of enzymes from this class through the optimization of target-selective probes. (C) 2014 Elsevier Ltd. All rights reserved.