New synthesis of N1- and N2-substituted pyrazolo[4,3-<i>b</i>]pyridine-5-one derivatives as CB2 receptor ligands
作者:Claudia Mugnaini、Antonella Brizzi、Giorgia Vinciarelli、Marco Paolino、Federico Corelli
DOI:10.1039/d0nj03400b
日期:——
structure–activity relationship to be fully explored. Herein, we describe a novel synthetic approach based on the use of a 2-tetrahydropyranyl (THP)-protected precursor that opens the way to obtain either N1- or N2-substituted analogs endowed with agonist or inverse agonist activity, respectively, at the CB2 receptor.
最近已经报道了7-羟基-5-氧杂吡唑并[4,3- b ]吡啶-6-羧酰胺支架的衍生物作为大麻素2型受体(CB2R)的有效和选择性激动剂/反向激动剂,但合成的采用的方式尚不能充分探索结构与活动的关系。在这里,我们描述了一种基于2-四氢吡喃基(THP)保护的前体的新颖合成方法,该方法为获得在CB2上分别具有激动剂活性或反向激动剂活性的N1-或N2-取代的类似物开辟了道路。受体。