Synthesis, Structure–Activity Relationships, and Preclinical Evaluation of Heteroaromatic Amides and 1,3,4-Oxadiazole Derivatives as 5-HT<sub>4</sub> Receptor Partial Agonists
作者:Ramakrishna Nirogi、Abdul Rasheed Mohammed、Anil K. Shinde、Shankar Reddy Gagginapally、Durga Malleshwari Kancharla、Vanaja Reddy Middekadi、Narsimha Bogaraju、Srinivasa Rao Ravella、Pooja Singh、Sumit Raosaheb Birangal、Ramkumar Subramanian、Raghava Choudary Palacharla、Vijay Benade、Nageswararao Muddana、Pradeep Jayarajan
DOI:10.1021/acs.jmedchem.8b00457
日期:2018.6.14
scaffolds having 5-HT4R pharmacophores were designed and evaluated. Most of the synthesized compounds showed potent in vitro affinities and in vivo efficacies. Upon analysis of focused structure–activity relationships, compound 4o was identified as a potent 5-HT4R partial agonist with favorable ADME properties and good in vivo efficacy. GR-125487, a selective 5-HT4R antagonist, attenuated the activity
阿尔茨海默氏病(AD)是一种神经退行性疾病,在60岁以上的人群中患病率和发病率较高。改进的AD疗法的需求未得到满足,因为当前疗法对症且疗效中等。5-HT 4受体(5-HT 4 R)的部分激动剂可通过激活α-分泌酶将淀粉样蛋白前体蛋白(APP)的处理过程从淀粉样蛋白生成途径转变为非淀粉样蛋白生成途径,从而提供对症和疾病缓解治疗。酶。此外,它们还通过增加大脑中神经递质乙酰胆碱的水平来提供对症治疗。由于这种引人入胜的双重作用机理,几种具有5-HT 4的化学支架设计并评估了R药效团。大多数合成的化合物显示出有效的体外亲和力和体内功效。通过分析集中的结构与活性之间的关系,化合物4o被确定为有效的5-HT 4 R部分激动剂,具有良好的ADME特性和良好的体内功效。GR-125487,一种选择性的5-HT 4 R拮抗剂,减弱了新对象识别测试认知模型中化合物4o的活性。