发现和镇痛评价8-氯-1,4-二氢吡啶并[2,3- b ]吡嗪-2,3-二酮作为新型有效的d-氨基酸氧化酶抑制剂
摘要:
合成了一系列5-氮杂喹喔啉-2,3-二酮衍生物,并评估了其作为潜在的基于α-羟基内酰胺的抑制剂对d-氨基酸氧化酶(DAAO)的抑制作用。体外的强抑制活性表明5-氮可以通过增强相关的氢键相互作用来显着增强结合亲和力。研究了鞘内和全身注射8-氯-1,4-二氢吡啶并[2,3- b ]吡嗪-2,3-二酮(5-氮杂喹喔啉-2,3-二酮的代表分子)的镇痛作用。啮齿动物。这项研究不仅证实了DAAO抑制剂的镇痛作用,而且还提供了一类具有口服应用潜力的新型化学实体,可用于治疗慢性疼痛和吗啡镇痛耐受性。
DOI:
10.1016/j.ejmech.2016.04.017
作为产物:
描述:
2-Amino-4-(2-phenylethoxy)-3-nitropyridine 、 一水合肼 在
镍 silica gel 作用下,
以
甲醇 为溶剂,
以gives 0.68 g of the title compound as an oil, which的产率得到4-Phenethoxypyridine-2,3-diamine
The compounds of formula (I) in which R1 is 1-4C-alkoxy, , A is 1-4C-alkylene, B represents 3H-imidazo (4,5b) pyridin-2-yl, 3H-imidazo (4,5-b) pyridin-2-yl substituted by R2 and/or R8, 9H-purin-8yl or 9H-purin-8-yl substituted by R4 and/or R5 are effective iNOS inhibitors.
The compounds of formula I
in which R1 is 1-4C-alkoxy, A is 1-4C-alkylene, B represents 3H-imidazo[4,5-b]pyridin-2-yl, 3H-imidazo[4,5-b]pyridin-2-yl substituted by R2 and/or R3, 9H-purin-8-yl or 9H-purin-8-yl substituted by R4 and/or R5, are effective iNOS inhibitors.
Inducible arginine oxidation and subsequent NO production by correspondent synthase (iNOS) are important cellular answers to proinflammatory signals. Prolonged NO production has been proved in higher organisms to cause stroke or septic shock. Several classes of potent NOS inhibitors have been reported, most of them targeting the arginine binding site of the oxygenase domain. Here we disclose the SAR and the rational design of potent and selective iNOS inhibitors which may be useful as anti-inflammatory drugs. (C) 2011 Elsevier Ltd. All rights reserved.