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[^(125)I]TZDM的制备

Preparation of [^(125)I]TZDM
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摘要 优良的Aβ显像剂必须对Aβ斑块有较高的亲和性,而体外竞争结合实验是筛选Aβ斑块显像剂的有效方法,实验中需要使用放射性配基[125I]TZDM。以对溴苯胺为起始原料,经过四步反应合成了[125I]TZDM的前体化合物Bu3Sn-TZDM,并通过125I进行标记制备了[125I]TZDM,标记率为62.5%。粗产物通过HPLC分离后,获得放射化学纯度大于97%的[125I]TZDM,实际产率为25%。 An excellent Aβ vitro competition binding imaging agent must have high assay is an effective method affinity for Aβ plaques. The in for determining the affinity of unlabelled imaging agents for Aβ plaques. [125Ⅰ]TZDM was often used as a radioactive ligand in the assay. In this paper, Bu3 Sn-TZDM, a precursor compound of [125Ⅰ]TZDM, was synthesized by four steps from 4-bromo-aniline. After the precursor compound was labeled with [125Ⅰ], crude [125Ⅰ]TZDM was obtained. The labelling yield is 62.5%. [125Ⅰ]TZDM is separated with HPLC and has more than 97% radiochemical purity. The actual yield is 25%.
出处 《核化学与放射化学》 CAS CSCD 北大核心 2010年第1期57-60,共4页 Journal of Nuclear and Radiochemistry
基金 国家自然科学基金资助项目(No.30640042)
关键词 阿尔茨海默病 [125I]TZDM Aβ斑块 Aβ显像剂 Alzheimer's disease [125Ⅰ]TZDM Aβ plaques Aβ imaging agent
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参考文献13

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