Development of 4-Heteroarylamino-1′-azaspiro[oxazole-5,3′-bicyclo[2.2.2]octanes] as α7 Nicotinic Receptor Agonists
作者:Matthew D. Hill、Haiquan Fang、H. Dalton King、Christiana I. Iwuagwu、Ivar M. McDonald、James Cook、F. Christopher Zusi、Robert A. Mate、Ronald J. Knox、Debra Post-Munson、Amy Easton、Regina Miller、Kimberley Lentz、Wendy Clarke、Yulia Benitex、Nicholas Lodge、Robert Zaczek、Rex Denton、Daniel Morgan、Linda Bristow、John E. Macor、Richard Olson
DOI:10.1021/acsmedchemlett.6b00471
日期:2017.1.12
[oxazole-5,3′-bicyclo[2.2.2]octan]-2-amine (20) and (1′S,3′R,4′S)-N-(7-chloropyrrolo[2,1-f][1,2,4]triazin-4-yl)-4H-1′-azaspiro[oxazole-5,3′-bicyclo[2.2.2]octan]-2-amine (21), were identified. Both agonists improved cognition in a preclinical rodent model of learning and memory. Additionally, 5-HT3A receptor SAR suggested the presence of a steric site that when engaged led to significant loss of affinity
我们描述了含奎尼丁的螺氨基甲酸酯的合成及其作为α7烟碱乙酰胆碱受体(nAChR)部分激动剂的效用。融合的合成路线可用于快速SAR调查,并提供了多种多样的融合6,5-杂芳基类似物。两个有效的和选择性α7nAChR的部分激动剂,(1'小号,3' - [R,4'小号) - ñ - (7-溴吡咯并[2,1- ˚F ] [1,2,4]三嗪-4-基) - 4H-1'-氮杂螺[恶唑恶唑-5,3'-二环[2.2.2]辛] -2-胺(20)和(1'小号,3' - [R,4'小号) - ñ - (7-氯吡咯[2,1- f鉴定了[[1,2,4]三嗪-4-基)-4H-1'-氮杂螺并[恶唑-5,3'-双环[2.2.2]正辛] -2-胺(21)。两种激动剂在临床前啮齿动物学习和记忆模型中均提高了认知度。此外,5-HT 3A受体SAR提示存在一个空间位点,该位点在接合时会导致该受体的亲和力明显下降。