Synthesis and analgesic activity of 1,3-dihydro-3-(substituted phenyl)imidazo[4,5-b]pyridin-2-ones and 3-(substituted phenyl)-1,2,3-triazolo[4,5-b]pyridines
作者:Robert L. Clark、Arsenio A. Pessolano、Tsung-Ying Shen、David P. Jacobus、Howard Jones、Victor J. Lotti、Lars M. Flataker
DOI:10.1021/jm00207a023
日期:1978.9
In a study of nonsteroidal antiinflammatory and analgesic agents, a series of 1,3-dihydro-3-(substituted phenyl)imidazo[4,5-b]pyridin-2-ones-and 3-(substituted phenyl)triazolo[4,5-b]pyridines was prepared. Many of the imidazolones were alkylated on the free nitrogen. In a modified Randall-Selitto analgesic assay, the pain thresholds of both the inflamed and normal foot were elevated. This is not commonly
在非甾体类抗炎和镇痛药的研究中,一系列1,3-二氢-3-(取代的苯基)咪唑并[4,5-b]吡啶-2-酮和3-(取代的苯基)三唑[4,制备了5-b]吡啶。许多咪唑啉酮在游离氮上被烷基化。在改良的Randall-Selitto镇痛方法中,发炎和正常足的疼痛阈值均升高。非甾体类抗炎药通常不会观察到这种情况。活性最高的化合物是1,3-二氢-3 [3,4-(亚甲基二氧基)苯基]咪唑并[4,5-b]吡啶-2-酮(I-15)及其N-烯丙基(I-21)和N-异丙基(I-121)衍生物。在三唑系列中,3-(2-氟-和2,4-二氟苯基)三唑并[4,5-b]吡啶(T-1和T-8)是最好的。咪唑化合物在止痛活性上比可待因和d-丙氧芬稍好,而没有显示任何麻醉特性。一些化合物还具有抗角叉菜胶诱发的大鼠足水肿的活性,因此这些化合物代表了一类新的非麻醉性镇痛消炎药,与其他非甾体类抗炎药相比,能够产生更大程度的镇痛作用。