The synthesis of methyl 2-(5-hydroxy-3-methoxypyridin-2-yl)acetate and alkyl 2-(5-hydroxypyrimidin-2-yl)acetate is described. Methodology for an efficient access to 5-hydroxy-pyridin- and pyrimidin-2-yl acetate cores has been developed. Based on the difference in halogen reactivity, 5-bromo-2-chloropyridine and its pyrimidine analogue were functionalized judiciously by S_NAr and palladium-catalyzed reactions. The outlined strategy provides a high-yielding route suitable for large-scale synthesis of these compounds as well as paves the way for a potential rapid access to other heterocyclic analogues.

中文翻译：

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烷基5-羟基吡啶和嘧啶-2-基乙酸烷基酯的高效大规模合成

描述了2-（5-羟基-3-甲氧基吡啶-2-基）乙酸甲酯和2-（5-羟基嘧啶-2-基）乙酸烷基酯的合成。已经开发出有效获得5-羟基吡啶和乙酸嘧啶-2-基乙酸盐核心的方法。根据卤素反应性的差异，通过S _N Ar和钯催化的反应将5-溴-2-氯吡啶及其嘧啶类似物适当地官能化。概述的策略提供了适用于这些化合物大规模合成的高产途径，并为潜在快速获得其他杂环类似物铺平了道路。