Spiro-oxindole Piperidines and 3-(Azetidin-3-yl)-1<i>H</i>-benzimidazol-2-ones as mGlu<sub>2</sub> Receptor PAMs
作者:Ana Isabel de Lucas、Juan Antonio Vega、Encarnación Matesanz、María Lourdes Linares、Aránzazu García Molina、Gary Tresadern、Hilde Lavreysen、Andrés A. Trabanco、José María Cid
DOI:10.1021/acsmedchemlett.9b00350
日期:2020.3.12
Starting from two weak mGlu(2) receptor positive allosteric modulator (PAM) HTS hits (4 and 5), a molecular hybridization strategy resulted in the identification of a novel spiro-oxindole piperidine series with improved activity and metabolic stability. Scaffold hopping around the spiro-oxindole core identified the 3(azetidin-3-yl)-1H-benzimidazol-2-one as bioisoster. Medicinal chemistry optimization of these two novel chemotypes resulted in the identification of potent, selective, orally bioavailable, and brain penetrant mGluR(2) PAMs.