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ID: ALA4422686

Journal: Bioorg Med Chem Lett

Title: Optimization of an azetidine series as inhibitors of colony stimulating factor-1 receptor (CSF-1R) Type II to lead to the clinical candidate JTE-952.

Authors: Ikegashira K, Ikenogami T, Yamasaki T, Oka T, Hase Y, Miyagawa N, Inagaki K, Kawahara I, Koga Y, Hashimoto H.

Abstract: Optimization of novel azetidine compounds, which we had found as colony stimulating factor-1 receptor (CSF-1R) Type II inhibitors, provided JTE-952 as a clinical candidate with high cellular activity (IC50 = 20 nM) and good pharmacokinetics profile. JTE-952 was also effective against a mouse collagen-induced model of arthritis (mouse CIA-model). Additionally, the X-ray co-crystal structure of JTE-952 with CSF-1R protein was shown to be a Type II inhibitor, and the kinase panel assay indicated that JTE-952 had high kinase selectivity.

CiteXplore: 30755337

DOI: 10.1016/j.bmcl.2019.02.006