Design, synthesis and biological evaluation of pyrazol-furan carboxamide analogues as novel Akt kinase inhibitors

Eur J Med Chem. 2016 Jul 19:117:47-58. doi: 10.1016/j.ejmech.2016.03.074. Epub 2016 Apr 5.

Abstract

A series of novel pyrazol-furan carboxamide analogues were designed, synthesized and biologically evaluated for their Akt1 inhibitory activities, as well as anti-proliferative efficacies against HCT116 and OVCAR-8 cell lines. Most compounds exhibited moderate to excellent Akt1 inhibitory activities, together with favorable cytotoxicities. Further kinase selectivity assay of the most promising compound 25e illustrated that it was also potent against the structurally related AGC kinases, including Akt2, Akt3, ROCK1 and PKA, but was specific over kinases from other subfamilies. In addition, the Western blot analysis indicated that 25e could significantly suppress the phosphorylation level of Akt substrate GSK3β in PC-3 cell. Moreover, 25e demonstrated a concentration-dependent inhibition of phosphorylation of PRAS40 in LNCaP cell, with IC50 value of 30.4 nM.

Keywords: Akt1 inhibitor; Cancer; Cytotoxicity; Molecular docking; Synthesis.

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / pharmacology
  • Cell Line, Tumor
  • Drug Design*
  • Furans / chemistry
  • HCT116 Cells
  • Humans
  • Phosphorylation / drug effects
  • Protein Kinase Inhibitors / chemical synthesis*
  • Protein Kinase Inhibitors / pharmacology
  • Proto-Oncogene Proteins c-akt / antagonists & inhibitors*
  • Pyrazoles / chemistry

Substances

  • Antineoplastic Agents
  • Furans
  • Protein Kinase Inhibitors
  • Pyrazoles
  • Proto-Oncogene Proteins c-akt