1,3,4-Oxadiazole, 1,3,4-thiadiazole, and 1,2,4-triazole analogs of the fenamates: in vitro inhibition of cyclooxygenase and 5-lipoxygenase activities
作者:Diane H. Boschelli、David T. Connor、Dirk A. Bornemeier、Richard D. Dyer、John A. Kennedy、Paul J. Kuipers、Godwin C. Okonkwo、Denis J. Schrier、Clifford D. Wright
DOI:10.1021/jm00065a002
日期:1993.6
N-Arylanthranilic acids, known generically as the fenamates, are nonsteroidal antiinflammatory drugs (NSAIDs) that block the metabolism of arachidonic acid by the enzyme cyclooxygenase (CO). Substitution of the carboxylic acid functionality of several fenamates with acidic heterocycles provided dual inhibitors of CO and 5-lipoxygenase (5-LO) activities when tested in an intact rat basophilic leukemia
N-Arylanthranilic酸,通常被称为泛酸,是非甾体类抗炎药(NSAIDs),可通过环氧合酶(CO)阻止花生四烯酸的代谢。在完整的大鼠嗜碱性粒细胞白血病(RBL-1)细胞系中进行测试时,用酸性杂环取代几种藻酸盐的羧酸官能团可提供CO和5-脂氧合酶(5-LO)活性的双重抑制剂。化合物5b(IC50 = 0.77 microM(5-LO),0.27 microM(CO)),其中包含1,3,4-恶二唑-2-硫酮替代物和10b(IC50 = 0.87 microM(5-LO),0.85 microM(包含1,3,4-噻二唑-2-硫酮的CO))是这些系列中最有效的5-LO和CO活性抑制剂。氟苯那酸的这两个杂环类似物在角叉菜胶诱导的大鼠足垫浮肿(CFE)(一种急性炎症模型)中也都具有活性。