Sulfide Analogues of Flupirtine and Retigabine with Nanomolar K
<sub>V</sub>
7.2/K
<sub>V</sub>
7.3 Channel Opening Activity
作者:Christian Bock、Abdrrahman S. Surur、Kristin Beirow、Markus K. Kindermann、Lukas Schulig、Anja Bodtke、Patrick J. Bednarski、Andreas Link
DOI:10.1002/cmdc.201900112
日期:2019.5.6
Sulfide analogues were identified that are devoid of the risk of quinone formation, but possess potent KV 7.2/3 opening activity. For example, flupirtineanalogue 3-(3,5-difluorophenyl)-N-(6-(isobutylthio)-2-(pyrrolidin-1-yl)pyridin-3-yl)propanamide (48) has 100-fold enhanced activity (EC50 =1.4 nm), a vastly improved toxicity/activity ratio, and the same efficacy as retigabine in vitro.