通过E-配置的烯酸中间体,通过rilzabrutinib的替代合成途径
Daibao Wei1, Jinbo Guo2, Fuqiang Zhu3
1State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai 201203, P. R. China.
The Journal of organic chemistry
|October 11, 2025
概括
通过使用胺形成,开发出了一种改进的rilzabrutinib合成. 这条新路线使中间产量增加了一倍,避免异构体的分离,并使总产量增加了20倍,从而提高了可持续性.
科学领域:
- 有机化学 有机化学
- 药用化学 医学化学
- 过程化学 过程化学
背景情况:
- 瑞尔扎布鲁丁尼布的合成需要高效和可持续的途径.
- 现有的合成方法可能涉及同位素分离和较低的产量.
研究的目的:
- 描述一种替代的,更有效的rilzabrutinib合成方法.
- 为了提高产量,可持续性和减少rilzabrutinib生产中的净化步骤.
主要方法:
- 胺基形成合式pyrazolopyrimidine-piperidine 20和E-烯酸 21. 胺基形成合式pyrazolopyrimidine-piperidine 20和E-烯酸 21.
- 使用Mitsunobu反应进行中间20合成.
- 使用Knoevenagel冷凝剂进行中介21合成.
主要成果:
- 皮拉佐洛皮里米丁-皮皮里丁20的产量翻了一番.
- E-烯酸21仅在E配置中使用.
- 与现有航线相比,总产量增加了20倍.
- 消除了对Z/E异构体分离的需要.
- 实现了无过渡金属的催化和无染色体的净化.
结论:
- 描述的替代途径提供了显著改善的 rilzabrutinib 的合成.
- 这种方法提高了整体产量,简化了净化,并增加了可持续性.
- 优化的工艺适合大规模生产rilzabrutinib.
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