Discovery of Novel Small Molecule Dual Inhibitors Targeting Toll-Like Receptors <b>7</b> and <b>8</b>
作者:Rosaura Padilla-Salinas、Rachel Anderson、Kentaro Sakaniwa、Shuting Zhang、Patrick Nordeen、Chuanjun Lu、Toshiyuki Shimizu、Hang Yin
DOI:10.1021/acs.jmedchem.9b01201
日期:2019.11.27
TLR7/8 dual inhibitor (1) and a TLR8-specific inhibitor (2) based on our previous screen targeting TLR8. Compound 1, bearing a benzanilide scaffold, was found to inhibit TLR7 and TLR8 at low micromolar concentrations. We envisioned making modifications on the benzanilide scaffold of 1 resulting in a class of highly specific TLR7 inhibitors. Our efforts led to the discovery of a new TLR8 inhibitor (CU-115)
内体通行费样受体(TLR)7和8识别病毒单链RNA,一类咪唑并喹啉化合物,8-氧代腺苷,8-氨基苯并二氮杂卓,嘧啶和鸟苷类似物。目前有大量证据表明,TLR7特异性介导的慢性炎症与自身免疫进程有关。基于我们先前针对TLR8的筛选,我们确定了一种新的TLR7 / 8双重抑制剂(1)和TLR8特异性抑制剂(2)。发现带有苯甲酰苯胺支架的化合物1在低微摩尔浓度下抑制TLR7和TLR8。我们设想对1的苯甲酰苯胺支架进行修改产生一类高度特异性的TLR7抑制剂。我们的努力导致发现了新的TLR8抑制剂(CU-115),并鉴定了带有独特的二苯醚骨架的TLR7 / 8双重抑制剂(CU-72),具有优化TLR7选择性的潜力。鉴于TLR8在自身免疫中的作用,我们还优化了2的效价并开发了带有1,3,4-恶二唑基序的新型TLR8抑制剂。