Identification of Multiple 5-HT<sub>4</sub> Partial Agonist Clinical Candidates for the Treatment of Alzheimer’s Disease
作者:Michael A. Brodney、David E. Johnson、Aarti Sawant-Basak、Karen J. Coffman、Elena M. Drummond、Emily L. Hudson、Katherine E. Fisher、Hirohide Noguchi、Nobuaki Waizumi、Laura L. McDowell、Alexandros Papanikolaou、Betty A. Pettersen、Anne W. Schmidt、Elaine Tseng、Kim Stutzman-Engwall、David M. Rubitski、Michelle A. Vanase-Frawley、Sarah Grimwood
DOI:10.1021/jm300953p
日期:2012.11.8
Alzheimer’s disease (AD) are in part a consequence of reduced acetylcholine (ACh) levels resulting from a loss of cholinergic neurons. Preclinically, serotonin 4 receptor (5-HT4) agonists are reported to modulate cholinergic function and therefore may provide a new mechanistic approach for treating cognitive deficits associated with AD. Herein we communicate the design and synthesis of potent, selective, and
在阿尔茨海默氏病(AD)中观察到的认知障碍部分是胆碱能神经元缺失导致乙酰胆碱(ACh)水平降低的结果。临床前,据报道血清素4受体(5-HT 4)激动剂可调节胆碱能功能,因此可能为治疗与AD相关的认知缺陷提供新的机制。在此,我们交流了有效,选择性和脑渗透剂5-HT 4的设计和合成激动剂。药物化学策略的总体目标是确定具有不同内在活性的结构多样的临床候选药物。在相关的AD临床前模型中,结合亲和力,内在活性,受体占有率,药物暴露和药效动力学活性之间的暴露-反应关系被用作推进化合物的关键选择标准。基于它们在药代动力学特性和安全性之间的极佳平衡,选择了两个5-HT 4领先的部分激动剂候选药物2d和3进行临床开发。