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This paper describes a novel series of 18 F-labeled polyethyleneglycol (PEG)-stilbene derivatives as potential β-amyloid (Aβ) plaque-specific imaging agents for positron emission tomography (PET). In these series of compounds, 18 F is linked to the stilbene through a PEG chain, of which the number of ethoxy groups ranges from 2 to 5. The purpose of adding PEG groups is to lower the...
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