Automated radiosynthesis of [18F]DPA-714 on a commercially available IBA Synthera®

Appl Radiat Isot. 2024 May:207:111257. doi: 10.1016/j.apradiso.2024.111257. Epub 2024 Mar 5.

Abstract

The goal of this work was to develop a reliable method to produce the well-validated microglial activation PET tracer, [18F]DPA-714, routinely for clinical and preclinical research using an IBA Synthera®. Optimization of literature methods included reduced precursor mass and use of TBA HCO3 as the phase transfer agent in place of Kryptofix® 222 in a 65-min synthesis with an average activity yield of 24.6 ± 3.8% (n = 5). Successful quality control testing and process validation results are reported.

Keywords: F-18; Fluorine-18; PET; Radiosynthesis; [(18)F]DPA-714.

MeSH terms

  • Fluorine Radioisotopes*
  • Positron-Emission Tomography / methods
  • Pyrazoles
  • Pyrimidines
  • Radiopharmaceuticals*

Substances

  • Fluorine Radioisotopes
  • N,N-diethyl-2-(2-(4-(2-fluoroethoxy)phenyl)-5,7-dimethylpyrazolo(1,5-a)pyrimidin-3-yl)acetamide
  • Radiopharmaceuticals
  • Pyrazoles
  • Pyrimidines