1-(5-Carboxyindol-1-yl)propan-2-ones as inhibitors of human cytosolic phospholipase A2α: Synthesis and properties of bioisosteric benzimidazole, benzotriazole and indazole analogues
作者:Stefanie Bovens、Martina Kaptur、Alwine Schulze Elfringhoff、Matthias Lehr
DOI:10.1016/j.bmcl.2009.03.019
日期:2009.4
The indole ring systems of the cytosolic phospholipase A2α (cPLA2α) inhibitor 1-[3-(4-octylphenoxy)-2-oxopropyl]indole-5-carboxylic acid (2) and the isomeric 6-carboxylic acid (3) were replaced by benzimidazole, benzotriazole and indazole scaffolds, respectively. The effect of the structural variations on cPLA2α inhibitory potency, metabolic stability and solubility was studied. The lead 2 and the
胞质磷脂酶A的吲哚环系统2 α(与cPLA 2 α)抑制剂1- [3-(4-辛基苯氧基)-2-氧代丙基]吲哚-5-羧酸(2)和异构-6-羧酸(3)分别替换为苯并咪唑,苯并三唑和吲唑支架。上CPLa中的结构变化的效果2 α抑制效力,代谢稳定性和溶解度进行了研究。在大鼠肝微粒体的测定中,铅2和吲唑5-羧酸28是代谢最稳定的化合物,而苯并咪唑5-羧酸衍生物13具有最佳的水溶性(pH 7.4时为22μg/ mL)。吲唑-5-羧酸28显示最高与cPLA 2在这一系列的化合物的α抑制效力。当IC 50值为0.005μM时,其活性比引线2高约7倍。