Potential CRF1R PET imaging agents: N-fluoroalkyl-8-(6-methoxy-2-methylpyridin-3-yl)-2,7-dimethyl-N-alkylpyrazolo[1,5-a][1,3,5]triazin-4-amines

Bioorg Med Chem Lett. 2011 Apr 15;21(8):2484-8. doi: 10.1016/j.bmcl.2011.02.050. Epub 2011 Feb 17.

Abstract

A series of N-fluoroalkyl-8-(6-methoxy-2-methylpyridin-3-yl)-2,7-dimethyl-N-alkylpyrazolo[1,5-a][1,3,5]triazin-4-amines were prepared and evaluated as potential CRF(1)R PET imaging agents. Optimization of their CRF(1)R binding potencies and octanol-phosphate buffer phase distribution coefficients resulted in discovery of analog 7e (IC(50)=6.5 nM, logD=3.5).

MeSH terms

  • Amines / chemical synthesis
  • Amines / chemistry*
  • Crystallography, X-Ray
  • Molecular Conformation
  • Positron-Emission Tomography
  • Pyrazoles / chemical synthesis
  • Pyrazoles / chemistry*
  • Receptors, Corticotropin-Releasing Hormone / chemistry*
  • Receptors, Corticotropin-Releasing Hormone / metabolism
  • Triazines / chemical synthesis
  • Triazines / chemistry*

Substances

  • Amines
  • Pyrazoles
  • Receptors, Corticotropin-Releasing Hormone
  • Triazines
  • CRF receptor type 1