首页> 外文期刊>Journal of Labelled Compounds and Radiopharmaceuticals >The synthesis of 5,7-dimethyl-1,2,4-triazolo(1,5a(~(14)C)) pyrimidine-2-carbaldehyde from (~(14)C)aminoguanidine: A key intermediate for the radiochemical GMP synthesis of a drug candidate
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The synthesis of 5,7-dimethyl-1,2,4-triazolo(1,5a(~(14)C)) pyrimidine-2-carbaldehyde from (~(14)C)aminoguanidine: A key intermediate for the radiochemical GMP synthesis of a drug candidate

机译:由(〜(14)C)氨基胍合成5,7-二甲基-1,2,4-三唑并(1,5a(〜(14)C))嘧啶-2-甲醛:放射化学GMP的关键中间体候选药物的合成

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摘要

Hydrazination of barium [~(14)C]cyanamide and hydrazinolysis of S-methylisothio[~(14)C]urea were compared for their ability to efficiently prepare [~(14)C]aminoguanidine bicarbonate. [ ~(14)C]Aminoguanidine bicarbonate was converted in three steps to 5, 7-dimethyl-1,2,4-triazolo[1,5a(~(14)C)]pyrimidine-2-carbaldehyde, a key radiochemical GMP starting material.
机译:比较了钡[〜(14)C]氰酰胺的肼化作用和S-甲基异硫代[〜(14)C]脲的肼解作用,以有效地制备[〜(14)C]氨基胍碳酸氢盐。 [〜(14)C]氨基胍碳酸氢盐经三步转化为5,7-二甲基-1,2,4-三唑[1,5a(〜(14)C)]嘧啶-2-甲醛,这是一种重要的放射化学GMP起始材料。

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