2019•Journal of Medicinal ChemistryOpen access
Discovery of BAY-985, a Highly Selective TBK1/IKKε Inhibitor
Julien Lefranc, Volker Schulze, Roman Christian Hillig, Hans Briem, Florian Prinz, Anne Mengel, Tobias K. Heinrich, József Bálint, Srinivasan Rengachari, Horst Irlbacher, Detlef Stöckigt, Ulf Bömer, Benjamin Bader, Stefan Gradl, Carl Friedrich Nising, Franz von Nussbaum, Dominik Mumberg, Daniel Panne, Antje Margret Wengner
Abstract
The serine/threonine kinase TBK1 (TANK-binding kinase 1) and its homologue IKKε are noncanonical members of the inhibitor of the nuclear factor κB (IκB) kinase family. These kinases play important roles in multiple cellular pathways and, in particular, in inflammation. Herein, we describe our investigations on a family of benzimidazoles and the identification of the potent and highly selective TBK1/IKKε inhibitor BAY-985. BAY-985 inhibits the cellular phosphorylation of interferon regulatory factor 3 and displays antiproliferative efficacy in the melanoma cell line SK-MEL-2 but showed only weak antitumor activity in the SK-MEL-2 human melanoma xenograft model.