Labeling of benzodioxin piperazines with fluorine-18 as prospective radioligands for selective imaging of dopamine D<sub>4</sub>receptors
作者:Fabian Kügler、Johannes Ermert、Heinz H. Coenen
DOI:10.1002/jlcr.3074
日期:2013.10
lipophilicity what led to three new putative dopamine receptor D(4) ligands. A comprehensive description of the syntheses of standard compounds and corresponding labeling precursors is given which were obtained in satisfactory yields. Furthermore, the radiosyntheses by direct (18) F-labeling and build-up synthesis were compared. All derivatives of 6-(4-[4-fluorobenzyl]-piperazin-1-yl)benzodioxin were
D(4) 受体对研究和临床应用具有很高的兴趣,但对合适的放射配体提出了很高的要求,以使其成为有用的调查工具。因此,寻找适合体内成像的足够放射性配体仍在进行中。潜在的精神安定药物 6-(4-[4-fluorobenzyl]piperazin-1-yl)benzodioxin 对 D(4) 受体显示出高亲和力和选择性。通过添加亲水性部分对这种先导结构进行衍生化,以降低其亲脂性,这导致了三个新的假定多巴胺受体 D(4) 配体。给出了以令人满意的产率获得的标准化合物和相应标记前体的合成的综合描述。此外,还比较了通过直接 (18) F 标记和累积合成进行的放射合成。