期刊
JOURNAL OF MEDICINAL CHEMISTRY
卷 53, 期 15, 页码 5549-5557出版社
AMER CHEMICAL SOC
DOI: 10.1021/jm100269c
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资金
- NIMH [1-R21-MH-66622-01]
- NIH
- NSF
The N-(E)-fluorobutenyl-3 beta-(para-halo-phenyl)nortropanes 9-12 were synthesized as ligands of the dopamine transporter (DAT) for use as F-18-labeled positron emission tomography (PET) imaging agents. In vitro competition binding assays demonstrated that compounds 9-12 have a high affinity for the DAT and are selective for the DAT compared to the serotonin and norepinephrine transporters. MicroPET imaging with [F-18]9 [F-18]11 in anesthetized cynomolgus monkeys showed high uptake in the putamen with lesser uptake in the caudate, but significant washout of the radiotracer was only observed for [F-18]9. PET imaging with [E-18]9 in an awake rhesus monkey showed high and nearly equal uptake in both the putamen and caudate with peak uptake achieved after 20 min followed by a leveling-off for about 10 min and then a steady washout and attainment of a quasi-equilibrium. During the time period 40-80 min postinjection of [F-18]9, the ratio of uptake in the putamen and caudate vs cerebellum uptake was a >= 4.
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