Methoxyphenylethynyl, methoxypyridylethynyl and phenylethynyl derivatives of pyridine: synthesis, radiolabeling and evaluation of new PET ligands for metabotropic glutamate subtype 5 receptors.

@article{Yu2005MethoxyphenylethynylMA,
  title={Methoxyphenylethynyl, methoxypyridylethynyl and phenylethynyl derivatives of pyridine: synthesis, radiolabeling and evaluation of new PET ligands for metabotropic glutamate subtype 5 receptors.},
  author={Meixiang Yu and W. Tueckmantel and Xukui Wang and Aijun Zhu and Alan P. Kozikowski and Abby Brownell},
  journal={Nuclear medicine and biology},
  year={2005},
  volume={32 6},
  pages={
          631-40
        }
}
We have synthesized three different PET ligands to investigate the physiological function of metabotropic glutamate subtype 5 receptors (mGluR5) in vivo: 2-[(11)C]methyl-6-(2-phenylethynyl)pyridine ([(11)C]MPEP), 2-(2-(3-[(11)C]methoxyphenyl)ethynyl)pyridine ([(11)C]M-MPEP) and 2-(2-(5-[(11)C]methoxypyridin-3-yl)ethynyl)pyridine ([(11)C]M-PEPy). [(11)C]Methyl iodide was used to label the compounds under basic conditions, and a Pd(0) catalyst was applied to label [(11)C]MPEP in a Stille coupling… CONTINUE READING
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