2-Benzimidazolyl-9-(chroman-4-yl)-purinone derivatives as JAK3 inhibitors

Andrew G. Cole, Adolph C. Bohnstedt, Vidyadhar Paradkar, Celia Kingsbury, Jorge G. Quintero, Haengsoon Park, Yingchun Lu, Ming You, Irina Neagu, David J. Diller, Jeffrey J. Letourneau, Yuefei Shao, Ray A. James, Christopher M. Riviello, Koc Kan Ho, Tsung H. Lin, Bojing Wang, Kenneth C. Appell, Matthew Sills, Elizabeth QuadrosEarl F. Kimble, Michael H.J. Ohlmeyer, Maria L. Webb

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

A novel class of Janus tyrosine kinase 3 (JAK3) inhibitors based on a 2-benzimidazoylpurinone core structure is described. Through substitution of the benzimidazoyl moiety and optimization of the N-9 substituent of the purinone, compound 24 was identified incorporating a chroman-based functional group. Compound 24 shows excellent kinase activity, good oral bioavailability and demonstrates efficacy in an acute mechanistic mouse model through inhibition of interleukin-2 (IL-2) induced interferon-γ (INF-γ) production.

Original languageEnglish
Pages (from-to)6788-6792
Number of pages5
JournalBioorganic and Medicinal Chemistry Letters
Volume19
Issue number23
DOIs
StatePublished - 1 Dec 2009
Externally publishedYes

Keywords

  • Benzimidazole
  • Chroman
  • JAK3
  • Janus kinase
  • Purinone
  • Rheumatoid arthritis

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