Synthesis and biological evaluation of 1-substituted-3-(6-methylpyridin-2- yl)-4-([1,2,4triazolo[1,5-apyridin-6-yl)pyrazoles as transforming growth factor-β type 1 receptor kinase inhibitors

  • Cheng Hua Jin
  • , Maddeboina Krishnaiah
  • , Domalapally Sreenu
  • , Vura Bala Subrahmanyam
  • , Kota Sudhakar Rao
  • , Annaji Venkata Nagendra Mohan
  • , Chul Yong Park
  • , Jee Yeon Son
  • , Yhun Yhong Sheen
  • , Dae Kee Kim

Research output: Contribution to journalArticlepeer-review

42 Scopus citations

Abstract

A series of 1-substituted-3-(6-methylpyridin-2-yl)-4-([1,2,4triazolo[1,5- apyridin-6-yl)pyrazoles 14a-ae, 16a, 16b, and 21a-c has been prepared and evaluated for their ALK5 inhibitory activity in an enzyme assay and in a cell-based luciferase reporter assay. The 4-([1,2,4triazolo[1,5-apyridin-6-yl)- N-(4-methoxyphenyl)-3-(6-methylpyridin-2-yl)-1H-pyrazole-1-carbothioamide (14n) inhibited ALK5 phosphorylation with IC 50 value of 0.57 nM and showed 94% inhibition at 100 nM in a luciferase reporter assay using HaCaT cells permanently transfected with p3TP-luc reporter construct.

Original languageEnglish
Pages (from-to)6049-6053
Number of pages5
JournalBioorganic and Medicinal Chemistry Letters
Volume21
Issue number20
DOIs
StatePublished - 15 Oct 2011

Bibliographical note

Funding Information:
This work was supported by RP-Grant 2010 of Ewha Womans University .

Keywords

  • ALK5 inhibitor
  • Cancer
  • Cell-based luciferase reporter assay
  • Fibrosis
  • Kinase assay
  • TGF-β

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