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- W1983197298 abstract "A series of fluorine-containing benzamide analogs was synthesized and evaluated as candidate ligands for positron emission tomography (PET) imaging of the sigma-2 (σ2) receptor status of solid tumors. Four compounds having a moderate to high affinity for σ2 receptors and a moderate to low affinity for sigma-1 (σ1) receptors were radiolabeled with fluorine-18 via displacement of the corresponding mesylate precursor with [18F]fluoride. Biodistribution studies in female Balb/c mice bearing EMT-6 tumor allografts demonstrated that all four F-18-labeled compounds had a high tumor uptake (2.5−3.7% ID/g) and acceptable tumor/normal tissue ratios at 1 and 2 h post-i.v. injection. An analysis of the chemistry and biodistribution data suggested that N-(4-(6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl)butyl)-2-(2-[18F]-fluoroethoxy)-5-methylbenzamide ([18F]3c) and N-(4-(6,7-dimethoxy-3,4-dihydroisoquinolin-2(1H)-yl)butyl)-2-(2-[18F]-fluoroethoxy)-5-iodo-3-methoxybenzamide ([18F]3f) are acceptable compounds for imaging the σ2 receptor status of solid tumors." @default.
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- W1983197298 date "2007-06-19" @default.
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- W1983197298 title "Fluorine-18-Labeled Benzamide Analogues for Imaging the σ<sub>2</sub> Receptor Status of Solid Tumors with Positron Emission Tomography" @default.
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- W1983197298 doi "https://doi.org/10.1021/jm0614883" @default.
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