Discovery of structurally distinct tricyclic M4 positive allosteric modulator (PAM) chemotypes – Part 2
作者:Madeline F. Long、Rory A. Capstick、Paul K. Spearing、Julie L. Engers、Alison R. Gregro、Sean R. Bollinger、Sichen Chang、Vincent B. Luscombe、Alice L. Rodriguez、Hyekyung P. Cho、Colleen M. Niswender、Thomas M. Bridges、P. Jeffrey Conn、Craig W. Lindsley、Darren W. Engers、Kayla J. Temple
DOI:10.1016/j.bmcl.2021.128416
日期:2021.12
tricyclic M4 PAM scaffolds with improved pharmacological properties. This endeavor involved a “tie-back” strategy to replace the 3-amino-4,6-dimethylthieno[2,3-b]pyridine-2-carboxamide core which lead to the discovery of two novel tricyclic cores: a 7,9-dimethylpyrido[3′,2′:4,5]thieno[3,2-d]pyrimidine core and 2,4-dimethylthieno[2,3-b:5,4-c′]dipyridine core. Both tricyclic cores displayed low nanomolar
这封信详细介绍了我们为开发具有改进的药理特性的新型三环 M 4 PAM 支架所做的努力。这项努力涉及一种“回接”策略,以取代 3-amino-4,6-dimethylthieno[2,3- b ]pyridine-2-carboxamide 核心,从而发现了两个新的三环核心:7,9 -二甲基吡啶并[3',2':4,5]噻吩并[3,2-d]嘧啶核和2,4-二甲基噻吩并[2,3 - b :5,4-c']联吡啶核。两个三环核心都显示出对人类 M 4受体的低纳摩尔效力。