elevated adenosine levels and A2B receptor signaling are characteristics of a number of chronic disease states. In this report we describe the discovery of certain thienouracils (thieno[2,3-d]pyrimidine-2,4(1H,3H)-diones) as antagonists of the A2B adenosine receptor by high-throughput screening from our corporate substance collection. The structure optimization of the initial screening hits led to
A 2B
腺苷受体是一种G蛋白偶联受体,属于
腺苷受体的四个成员家族:A 1,A 2A,A 2B,A 3。虽然
腺苷介导的A 2B受体信号传导减弱了急性炎症,促进了组织对缺氧的适应,并在急性损伤的条件下诱导了缺血耐受性的增强,但
腺苷水平持续升高和A 2B受体信号传导是许多慢性疾病状态的特征。在本报告中,我们描述了某些
噻吩嘧啶(
噻吩并[2,3-d]
嘧啶-2,4(1 H,3 H)-二酮)作为A 2B拮抗剂的发现。通过我们公司物质收集中的高通量筛选获得
腺苷受体。初始筛选命中物的结构优化导致了BAY-545,这是一种适用于体内测试的A 2B受体拮抗剂。还介绍了结构优化工作,从中得出的
SAR以及BAY-545的性能。在两种肺纤维化模型中证明了BAY-545的体内功效,并提供了数据。