4F08

Discovery and Optimization of C-2 Methyl Imidazo-pyrrolopyridines as Potent and Orally Bioavailable JAK1 Inhibitors with Selectivity over JAK2

4F08 の概要

• エントリーDOI: 10.2210/pdb4f08/pdb
• 関連するPDBエントリー: 4EHZ 4EI4 4F09
• 分子名称: Tyrosine-protein kinase JAK2, 1-(piperidin-4-yl)-1,6-dihydroimidazo[4,5-d]pyrrolo[2,3-b]pyridine (2 entities in total)
• 機能のキーワード: jak2, kinase domain, transferase-transferase inhibitor complex, transferase/transferase inhibitor
• 由来する生物種: Homo sapiens (human)
• 細胞内の位置: Endomembrane system; Peripheral membrane protein (By similarity): O60674
• タンパク質・核酸の鎖数: 2
• 化学式量合計: 71455.09

構造登録者

Murray, J.M. (登録日: 2012-05-03, 公開日: 2012-07-04, 最終更新日: 2024-11-06)

主引用文献

Zak, M.,Mendonca, R.,Balazs, M.,Barrett, K.,Bergeron, P.,Blair, W.S.,Chang, C.,Deshmukh, G.,Devoss, J.,Dragovich, P.S.,Eigenbrot, C.,Ghilardi, N.,Gibbons, P.,Gradl, S.,Hamman, C.,Hanan, E.J.,Harstad, E.,Hewitt, P.R.,Hurley, C.A.,Jin, T.,Johnson, A.,Johnson, T.,Kenny, J.R.,Koehler, M.F.,Bir Kohli, P.,Kulagowski, J.J.,Labadie, S.,Liao, J.,Liimatta, M.,Lin, Z.,Lupardus, P.J.,Maxey, R.J.,Murray, J.M.,Pulk, R.,Rodriguez, M.,Savage, S.,Shia, S.,Steffek, M.,Ubhayakar, S.,Ultsch, M.,van Abbema, A.,Ward, S.I.,Xiao, L.,Xiao, Y.
Discovery and Optimization of C-2 Methyl Imidazopyrrolopyridines as Potent and Orally Bioavailable JAK1 Inhibitors with Selectivity over JAK2.
J.Med.Chem., 55:6176-6193, 2012

PubMed Abstract: Herein we report the discovery of the C-2 methyl substituted imidazopyrrolopyridine series and its optimization to provide potent and orally bioavailable JAK1 inhibitors with selectivity over JAK2. The C-2 methyl substituted inhibitor 4 exhibited not only improved JAK1 potency relative to unsubstituted compound 3 but also notable JAK1 vs JAK2 selectivity (20-fold and >33-fold in biochemical and cell-based assays, respectively). Features of the X-ray structures of 4 in complex with both JAK1 and JAK2 are delineated. Efforts to improve the in vitro and in vivo ADME properties of 4 while maintaining JAK1 selectivity are described, culminating in the discovery of a highly optimized and balanced inhibitor (20). Details of the biological characterization of 20 are disclosed including JAK1 vs JAK2 selectivity levels, preclinical in vivo PK profiles, performance in an in vivo JAK1-mediated PK/PD model, and attributes of an X-ray structure in complex with JAK1.

PubMed: 22698084
DOI: 10.1021/jm300628c

実験手法

X-RAY DIFFRACTION (2.82 Å)