Design, Synthesis, and Structure-Activity Relationships of 3,4,5-Trisubstituted 4,5-Dihydro-1,2,4-oxadiazoles as TGR5 Agonists
作者:Junjie Zhu、Yangliang Ye、Mengmeng Ning、Attila Mándi、Ying Feng、Qingan Zou、Tibor Kurtán、Ying Leng、Jianhua Shen
DOI:10.1002/cmdc.201300144
日期:2013.7
By thorough analysis of diverse structures of published TGR5 agonists, a hypothetical ligand‐based pharmacophore model was built, and a new class of potent TGR5 agonists, based on the novel 3,4,5‐trisubstituted 4,5‐dihydro‐1,2,4‐oxadiazole core, was discovered by rational design. Three distinct synthetic methods for constructing 4,5‐dihydro‐1,2,4‐oxadiazoles and extensive structure–activity relationship
鉴于其在能量和葡萄糖稳态中的介导作用,G蛋白偶联胆汁酸受体1(TGR5)被认为是治疗2型糖尿病和其他代谢性疾病的潜在靶标。通过对已发表的TGR5激动剂的各种结构进行全面分析,建立了一个假设的基于配体的药效团模型,并基于新型3,4,5-三取代的4,5-二氢-1,2来开发了一类新型的强效TGR5激动剂。 ,4-恶二唑核是通过合理设计发现的。本文报道了三种不同的合成方法来构建4,5-二氢-1,2,4-恶二唑和广泛的结构-活性关系研究。化合物(R)-54 n,其结构是通过单晶X-射线衍射和量子化学固态TDDFT-ECD计算确定,显示出最好的效力,用EC 50为1.4的n值中号朝向hTGR5。它在体外的有利特性值得进一步研究。