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- W2085496483 abstract "Synthesis, in vitro and in vivo evaluation of [O-methyl-(11)C]dimethylamino-3(4-methoxyphenyl)-3H-pyrido[3',2':4,5]thieno[3,2-d]pyrimidin-4-one (1), a potential imaging agent for mGluR1 receptors using PET are described. Synthesis of the corresponding desmethyl precursor 2 was achieved by demethylation of the methoxyphenyl compound 1 in 90% yield. Methylation using [(11)C]MeOTf in presence of NaOH afforded [(11)C]1 in 30% yield (EOS) with >99% chemical and radiochemical purities and with a specific activity of 3-5Ci/micromol (n=6). The total synthesis time was 30min from EOB. The radiotracer selectively labeled mGluR1 receptors in slide-mounted sections of postmortem human brain containing cerebellum, hippocampus, prefrontal cortex and striatum as demonstrated by in vitro autoradiography using phosphor-imaging. PET studies in anesthetized baboon show that [(11)C]1 penetrates the BBB and accumulates in cerebellum, a region reported to have higher expression of mGluR1. These findings suggest [(11)C]1 is a promising PET radiotracer candidate for mGluR1." @default.
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- W2085496483 date "2010-06-01" @default.
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- W2085496483 title "Synthesis, in vitro and in vivo evaluation of [11C]MMTP: A potential PET ligand for mGluR1 receptors" @default.
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- W2085496483 doi "https://doi.org/10.1016/j.bmcl.2010.04.146" @default.
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