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ID: ALA1151779

Journal: Bioorg Med Chem Lett

Title: Exploration of a fundamental substituent effect of alpha-ketoheterocycle enzyme inhibitors: Potent and selective inhibitors of fatty acid amide hydrolase.

Authors: DeMartino JK, Garfunkle J, Hochstatter DG, Cravatt BF, Boger DL.

Abstract: A series of C4 substituted alpha-ketooxazoles were examined as inhibitors of the serine hydrolase fatty acid amide hydrolase in efforts that further define and generalize a fundamental substituent effect on enzyme inhibitory potency. Thus, a plot of the Hammett sigma(m) versus -logK(i) provided a linear correlation (R(2)=0.90) with a slope of 3.37 (rho=3.37), that is of a magnitude that indicates that of the electron-withdrawing character of the substituent dominates its effects (a one unit change in sigma(m) provides a >1000-fold change in K(i)).

CiteXplore: 18639454

DOI: 10.1016/j.bmcl.2008.06.084