Studies on 5-Lipoxygenase Inhibitors. I. Synthesis and 5-Lipoxygenase-Inhibitory Activity of Novel Hydroxamic Acid Derivatives.
作者:Takumi YATABE、Yoshio KAWAI、Teruo OKU、Hirokazu TANAKA
DOI:10.1248/cpb.46.966
日期:——
A series of novel hydroxamates has been prepared and tested for inhibitory activity towards rat polymorphonuclear leukocyte (PMN) 5-lipoxygenase (5-LO) in vitro and towards neutrophil migration in the rat air pouch model of inflammation in vivo. Many 3, 4-dihydronaphthyl compounds were potent inhibitors of 5-LO, and several compounds were potent inhibitors of neutrophil migration. The most potent 3, 4-dihydronaphthyl compound, N-[[(3, 4-dihydro-5-phenoxy)-2-naphthyl]methyl]-N-hydroxy-N'-ethylurea (FR122788, 18) had an IC50 of 25 nM in the 5-LO assay, and strongly reduced neutrophil migration in the rat air pouch model at 1 mg/kg (p.o.). FR122788 also had an ameliorating effect in a rat hepatiatis model induced by D-galactosamine, with an ED<50> values of 14.6 mg/kg (p.o.) for glutamate oxaloacetate transaminase (GOT) and 16.8 mg/kg (p.o.) for glutamate pyruvate transaminase (GPT).
已制备了一系列新型异羟肟酸盐,并测试了其对体外大鼠多形核白细胞 (PMN) 5-脂氧合酶 (5-LO) 的抑制活性以及体内大鼠气袋炎症模型中对中性粒细胞迁移的抑制活性。许多3, 4-二氢萘基化合物是5-LO的有效抑制剂,并且一些化合物是中性粒细胞迁移的有效抑制剂。最有效的 3, 4-二氢萘基化合物 N-[[(3, 4-二氢-5-苯氧基)-2-萘基]甲基]-N-羟基-N'-乙基脲 (FR122788, 18) 的 IC50 为5-LO 测定中浓度为 25 nM,1 mg/kg(口服)可显着降低大鼠气囊模型中的中性粒细胞迁移。 FR122788还在D-半乳糖胺诱导的大鼠肝炎模型中具有改善作用,谷氨酸草酰乙酸转氨酶(GOT)的ED 50 值为14.6mg/kg(口服),谷氨酸丙酮酸的ED 50 值为16.8mg/kg(口服)。转氨酶(GPT)。