Allosteric Activation of α7 Nicotinic Acetylcholine Receptors by Novel 2-Arylamino-thiazole-5-carboxylic Acid Amide Derivatives for the Improvement of Cognitive Deficits in Mice
作者:Chenxia Yang、Ying Meng、Xintong Wang、Xin Li、Tong Yu、Weiming Liao、Wenjun Xie、Qianchen Jiang、Han Wang、Cheng Shi、Wenxuan Jiao、Xiling Bian、Fang Hu、Xiaowei Wang、Yani Liu、Liangren Zhang、KeWei Wang、Qi Sun
DOI:10.1021/acs.jmedchem.3c02323
日期:2024.4.25
as a therapeutic strategy for cognitive disorders. Here, we report the synthesis and evaluation of 2-arylamino-thiazole-5-carboxylic acid amide derivatives 6–9 that as positive allosteric modulators (PAMs) activate human α7 nAChR current expressed in Xenopus ooctyes. Among the 4-amino derivatives, a representative atypical type I PAM 6p exhibits potent activation of α7 current with an EC50 of 1.3 μM
增强 α7 nAChR 功能可作为认知障碍的治疗策略。在这里,我们报告了 2-芳基氨基-噻唑-5-羧酸酰胺衍生物6 – 9的合成和评估,该衍生物作为正变构调节剂 (PAM) 激活非洲爪蟾卵母中表达的人类 α7 nAChR 电流。在4-氨基衍生物中,代表性的非典型I型PAM 6p表现出对α7电流的有效激活,EC 50为1.3 μM,并且在乙酰胆碱(100 μM)存在下对电流的最大激活效果超过48倍。构效关系(SAR)分析表明,4-氨基对于化合物6p的 α7 电流变构激活至关重要,因为 4-甲基的取代导致其转化为化合物7b (EC 50 = 2.1 μM;最大效果:58 倍)被描述为典型的 I 型 PAM。此外, 6p和7b都能够挽救小鼠精神分裂症样声惊吓前脉冲抑制模型中的听觉门控缺陷。