Large-Scale Amide Coupling in Aqueous Media: Process for the Production of Diazabicyclooctane β-Lactamase Inhibitors
作者:Yasinalli Tamboli、Jaydeo T. Kilbile、Arvind Y. Merwade
DOI:10.1021/acs.oprd.2c00299
日期:2023.1.20
Herein, the amide coupling of six primary amines with the sodium salt of diazabicyclooctane acid in an aqueous medium without an additional base/surfactant or organic solvent is described. The product was efficiently isolated from the reaction through simple filtration and recrystallized using hot water treatment as a swift and cost-effective process. The methodology was implemented on a kilogram scale
在此,描述了六种伯胺与二氮杂二环辛烷酸的钠盐在水性介质中的酰胺偶联,无需额外的碱/表面活性剂或有机溶剂。该产品通过简单的过滤从反应中有效分离,并使用热水处理重结晶,这是一种快速且经济高效的过程。该方法以千克规模实施,以生产用于合成 zidebactam、relebactam 和 nacubactam 等 β-内酰胺酶抑制剂的倒数第二个中间体。讨论了几种先前报道的酰胺偶联方法的绿色指标比较。开发的程序避免使用危险的有机溶剂,并在操作层面提供了一种简单的分离方法,具有高纯度和高效率。