Synthesis of 4-amino-5-fluoropyrimidines and 5-amino-4-fluoropyrazoles from a β-fluoroenolate salt
作者:Tobias Lucas、Jule-Philipp Dietz、Till Opatz
DOI:10.3762/bjoc.16.41
日期:——
A synthesis of fluorinated pyrimidines under mild conditions from amidine hydrochlorides and the recently described potassium 2-cyano-2-fluoroethenolate was developed. A broad substrate scope was tested and mostly excellent yields were obtained. The synthesis of fluorinated aminopyrazoles from the same fluorinated precursor could be demonstrated but proceeded with lower efficiency.
Synthesis of 5‐Fluorocytosine Using 2‐Cyano‐2‐fluoroethenolate as a Key Intermediate
作者:Jule‐Philipp Dietz、Brenden P. Derstine、Dorota Ferenc、Evan T. Crawford、Anthony J. Arduengo、B. Frank Gupton、D. Tyler McQuade、Till Opatz
DOI:10.1002/ejoc.201900629
日期:2019.9
urgent demand for 5-fluorocytosine (5FC) due to its activity against HIV-induced fungal infections as well as its use as a keyintermediate in the synthesis of the clinically highly important anti-HIV drug emtricitabine (FTC). We report a simple, low-cost five steps synthesis of 5-FC starting from chloroacetamide. Overall yields up to 46 % were achieved and the route is devoid of any chromatographic
由于 5-氟胞嘧啶 (5FC) 具有抗 HIV 诱导的真菌感染的活性,并且可用作合成临床上非常重要的抗 HIV 药物恩曲他滨 (FTC) 的关键中间体,因此迫切需要 5-氟胞嘧啶 (5FC)。我们报告了从氯乙酰胺开始的 5-FC 的简单、低成本的五步合成。实现了高达 46% 的总产率,并且该路线没有任何色谱纯化。