Prostaglandin E2 (PGE2) is a key mediator of inflammation, and consequently huge efforts have been devoted to the development of novel agents able to regulate its formation. In this work, we present the synthesis of various α-ketoheterocycles and a study of their ability to inhibit the formation of PGE2 at a cellular level. A series of α-ketobenzothiazoles, α-ketobenzoxazoles, α-ketobenzimidazoles, and α-keto-1,2,4-oxadiazoles were synthesized and chemically characterized. Evaluation of their ability to suppress the generation of PGE2 in interleukin-1β plus forskolin-stimulated mesangial cells led to the identification of one α-ketobenzothiazole (GK181) and one α-ketobenzoxazole (GK491), which are able to suppress the PGE2 generation at a nanomolar level.
前列腺素E2(PGE2)是炎症的关键介质,因此人们已经付出了巨大的努力来开发能够调节其形成的新型药物。在这项工作中,我们介绍了各种α-酮杂环的合成,并研究它们抑制细胞水平PGE2形成的能力。合成了一系列α-酮苯并噻唑、α-酮苯并噁唑、α-酮苯并咪唑和α-酮-1,2,4-噁二唑,并进行了化学表征。评估它们在白细胞介素-1β加福尔斯科林刺激的系膜细胞中抑制PGE2生成的能力,发现了一种α-酮苯并噻唑(GK181)和一种α-酮苯并噁唑(GK491),它们能够在纳摩尔水平上抑制PGE2的生成。