Atroposelective synthesis of configurationally stable nonbiaryl N–C atropisomers through direct asymmetric aminations of 1,3-benzenediamines
作者:Donglei Wang、Qianwen Jiang、Xiaoyu Yang
DOI:10.1039/d0cc02368j
日期:——
A highly atroposelective synthesis of nonbiaryl N–C atropisomers was achieved via direct aminations of 1,3-benzenediamines with azodicarboxylates enabled by chiral phosphoric acid catalysis. A series of N-substituents, benzene-substituents and azodicarboxylates were well tolerated, generating N–C atropisomers with high configurational stability. The facile derivatizations and utilizations of the chiral
2-pyridyl substituted imidazoles as therapeutic ALK5 and/or ALK4 inhibitors
申请人:EWHA University - Industry Collaboration Foundation
公开号:US08080568B1
公开(公告)日:2011-12-20
This invention relates to 2-pyridyl substituted imidazoles which are inhibitors of the transforming growth factor-β (TGF-β) type I receptor (ALK5) and/or the activin type I receptor (ALK4), methods for their preparation, and their use in medicine, specifically in the treatment and prevention of a disease state mediated by these receptors.
2-PYRIDYL SUBSTITUTED IMIDAZOLES AS THERAPEUTIC ALK5 AND/OR ALK4 INHIBITORS
申请人:Kim Dae-Kee
公开号:US20110319406A1
公开(公告)日:2011-12-29
This invention relates to 2-pyridyl substituted imidazoles which are inhibitors of the transforming growth factor-β (TGF-β) type I receptor (ALK5) and/or the activin type I receptor (ALK4), methods for their preparation, and their use in medicine, specifically in the treatment and prevention of a disease state mediated by these receptors.
2-Pyridyl substituted imidazoles as therapeutic Alk5 and/or Alk4 inhibitors
申请人:Ewha University-Industry Collaboration Foundation
公开号:EP2947081A1
公开(公告)日:2015-11-25
This invention relates to 2-pyridyl substituted imidazoles (I) which are inhibitors of the transforming growth factor-β (TGF-β) type I receptor (ALK5) and/or the activin type I receptor (ALK4), methods for their preparation, and their use in medicine, specifically in the treatment and prevention of a disease state mediated by these receptors.
Discovery of <i>N</i>-((4-([1,2,4]Triazolo[1,5-<i>a</i>]pyridin-6-yl)-5-(6-methylpyridin-2-yl)-1<i>H</i>-imidazol-2-yl)methyl)-2-fluoroaniline (EW-7197): A Highly Potent, Selective, and Orally Bioavailable Inhibitor of TGF-β Type I Receptor Kinase as Cancer Immunotherapeutic/Antifibrotic Agent
作者:Cheng Hua Jin、Maddeboina Krishnaiah、Domalapally Sreenu、Vura B. Subrahmanyam、Kota S. Rao、Hwa Jeong Lee、So-Jung Park、Hyun-Ju Park、Kiho Lee、Yhun Yhong Sheen、Dae-Kee Kim
DOI:10.1021/jm500115w
日期:2014.5.22
A series of 2-substituted-4-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-5-(6-methylpyriclin-2-yl)imidazoles was synthesized and evaluated to optimize a prototype inhibitor of TGF-beta type I receptor kinase (ALK5), 6. Combination of replacement of a quinoxalin-6-yl moiety of 6 with a [1,2,4]triazolo[1,5-a]pyridin-6-yl moiety, insertion of a methyleneamino linker, and a o-F substituent in the phenyl ring markedly increased ALK5 inhibitory activity, kinase selectivity, and oral bioavailability. The 12b (EW-7197) inhibited ALKS with IC50 value of 0.013 mu M in a kinase assay and with IC50 values of 0.0165 and 0.0121 mu M in HaCaT (3TP-luc) stable cells and 4T1 (3TP-luc) stable cells, respectively, in a luciferase assay. Selectivity profiling of 12b using a panel of 320 protein kinases revealed that it is a highly selective ALKS/ALK4 inhibitor. Pharmacokinetic study with 12b center dot HCl in rats showed an oral bioavailability of 51% with high systemic exposure (AUC) of 1426 ng x h/mL and maximum plasma concentration (C-max) of 1620 ng/mL. Rational optimization of 6 has led to the identification of a highly potent, selective, and orally bioavailable ALK5 inhibitor 12b.