Design, synthesis, and biological evaluation of novel oxadiazole- and thiazole-based histamine H3R ligands
作者:Mohammad A. Khanfar、David Reiner、Stefanie Hagenow、Holger Stark
DOI:10.1016/j.bmc.2018.06.028
日期:2018.8
Histamine H3 receptor (H3R) is largely expressed in the CNS and modulation of the H3R function can affect histamine synthesis and liberation, and modulate the release of many other neurotransmitters. Targeting H3R with antagonists/inverse agonists may have therapeutic applications in neurodegenerative disorders, gastrointestinal and inflammatory diseases. This prompted us to design and synthesize azole-based
组胺H 3受体(H 3 R)在中枢神经系统中大量表达,对H 3 R功能的调节可影响组胺的合成和释放,并调节许多其他神经递质的释放。用拮抗剂/反向激动剂靶向H 3 R可能在神经退行性疾病,胃肠道和炎性疾病中具有治疗应用。这促使我们设计和合成基于吡咯的H 3R配体,即具有基于恶二唑或噻唑的核心结构。虽然恶二唑支架的配体几乎没有活性,但噻唑基配体却非常有效,并且一些在纳摩尔浓度范围内表现出结合亲和力。发现在任意基于噻唑的H 3 R配体系列中,将4-氰基苯基部分作为任意区域,对二甲苯或哌啶氨基甲酰基连接基和/或吡咯烷或哌啶碱性头部结合的配体最活跃。活性最高的配体是计算机筛选ADMET属性和药物相似性。他们符合Lipinski和Veber的规定,并表现出口服给药,血脑屏障渗透,低肝毒性以及总体良好的毒性特征的潜在活性。