作者:Chen, Yan、Sun, Yongcheng、Xu, Yufang、Qian, Xuhong、Zhu, Weiping
DOI:10.1021/acs.oprd.4c00166
日期:——
SARS-CoV-2 in China in 2022. In this work, we describe a fully continuous flow synthesis of 2′-deoxy-2′-fluoroarabinoside, a key intermediate for azvudine. The process was accomplished via six chemical transformations, including chlorination, hydrolysis, fluorination, bromination, condensation, and deprotection in six sequential continuous flow devices. Under the optimized process conditions, the total
Azvudine 于 2021 年在中国被批准用于治疗成人 HIV-1 感染,并于 2022 年被批准在中国有条件上市用于治疗 SARS-CoV-2。在这项工作中,我们描述了一种完全连续流程合成2'-脱氧-2'-氟阿拉伯糖苷,阿兹夫定的关键中间体。该过程通过六次化学转化完成,包括在六个连续的连续流动装置中进行氯化、水解、氟化、溴化、缩合和脱保护。在优化工艺条件下,总收率为32.3%,总停留时间为156 min。与间歇条件相比,总收率提高了一倍,总反应时间缩短16倍,E因子降低1.63倍。