Potent inhibitors of fatty acid amide hydrolase (FAAH) are constructed having Ki's below 200 pM and activities 102-103 times more potent than the corresponding trifluoromethyl ketones. The potent inhibitors combine several features, viz.: 1.) an &agr;-keto heterocylic head group; 2.) a hydrocarbon linkage unit employing an optimal C12-C8 chain length; and 3.) a phenyl or other &pgr;-unsaturation corresponding to the arachidonyl &Dgr;8.9/&Dgr;11.12 and/or oleyl &Dgr;9.10 positions. A preferred &agr;-keto heterocylic head group is &agr;-keto N4 oxazolopyridine, with incorporation of a second weakly basic nitrogen. Fatty acid amide hydrolase is an enzyme responsible for the degradation of oleamide (an endogenous sleep-inducing lipid) and anandamide (an endogenous ligand for cannabinoid receptors).
具有Ki值低于200 pM且活性比相应的三
氟甲基酮高102-103倍的
脂肪酸酰胺
水解酶(FAAH)的强效
抑制剂已构建。这些强效
抑制剂结合了几个特征,即:1.) 含有α-酮杂环头基团;2.) 使用最佳的C12-C8链长的烃链连接单元;以及3.) 含有苯环或其他与
花生酸Δ8.9/Δ11.12和/或
油酸Δ9.10位置相对应的π-不饱和度。首选的α-酮杂环头基团是α-酮N4
噁唑吡啶,并且包含了第二个弱碱性氮原子。
脂肪酸酰胺
水解酶是一种负责降解油酰胺(一种内源性诱导睡眠的脂质)和阿南胺(一种内源性
大麻素受体
配体)的酶。