18F-Fluorodeoxyglucamines: Reductive amination of hydrophilic 18F-fluoro-2-deoxyglucose with lipophilic amines for the development of potential PET imaging agents
作者:Aparna Baranwal、Jogeshwar Mukherjee
DOI:10.1016/j.bmcl.2015.05.053
日期:2015.8
pseudo-Amadori products. To increase in vivo stability, we report the reductive amination of FDGly to provide reduced fluorodeoxyglucamines (FDGlu). 18F-Fluorodeoxyglucamines (18F-FDGlu), resulting from linking 18F-FDG (hydrophilic) to lipophilic molecules containing amine group may be useful as positron emission tomography (PET) imaging agents. Two amine derivatives, 7-chloro-8-hydroxy-3-methyl-l-(3′-aminophenyl)-2
18 F-FDG与生物胺的美拉德反应导致形成18 F-氟脱氧糖基胺(18 F-FDGly),为假Amadori产物。为了增加体内稳定性,我们报道了FDGly的还原胺化以提供减少的氟代脱氧葡萄糖胺(FDGlu)。18 F-氟脱氧葡糖胺(18 F-FDGlu),是通过连接18F-FDG(亲水性)至含有胺基的亲脂性分子可用作正电子发射断层扫描(PET)成像剂。两种胺衍生物7-氯-8-羟基-3-甲基-1-(3'-氨基苯基)-2,3,4,5-四氢-1H-3-苯并ze庚因(多巴胺D1受体为SCH 38548)和BTA -0(对于Aβ淀粉样蛋白)在还原胺化条件下与FDG反应,生成稳定的产物FDGluSCH和FDGluBTA。FDGluSCH对大鼠脑多巴胺D1受体具有高结合亲和力,K i为19.5 nM,而FDGluBTA对人额叶皮层Aβ斑具有微摩尔亲和力。以低至中等的放射化学产率制备了18 F-FDGl