A Facile Synthesis of 5-Halopyrimidine-4-Carboxylic Acid Esters via a Minisci Reaction
作者:Collin Regan、Fabrice Pierre、Michael Schwaebe、Mustapha Haddach、Michael Jung、David Ryckman
DOI:10.1055/s-0031-1290136
日期:2012.2
This paper reports the synthesis of various 5-halopyrimidine-4-carboxylic acid esters via the Minisci homolytic alkoxycarbonylation of 5-halopyrimidines. The reaction was found to be highly regioselective, allowing the one-step synthesis of useful amounts (>10 g) of ethyl 5-bromopyrimidine-4-carboxylate where other methods proved difficult. Ethyl 5-bromopyrimidine-4-carboxylate was used for the preparation of potent CK2 inhibitors including CX-5011. This work represents an interesting application of radical chemistry for the preparation of pharmacologically active molecules.
本文报告了通过 Minisci 均聚烷氧基羰基化 5-卤代嘧啶合成各种 5-卤代嘧啶-4-羧酸酯的过程。该反应具有很高的区域选择性,可以在其他方法难以合成的地方一步合成出有用量(大于 10 克)的 5-溴嘧啶-4-羧酸乙酯。5- 溴嘧啶-4-羧酸乙酯被用于制备包括 CX-5011 在内的强效 CK2 抑制剂。这项工作代表了自由基化学在制备药理活性分子方面的有趣应用。