简化的寡核酸去除保护过程,减少了3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 乙烯) 提米丁杂质
Xuan Zhou1, Xianglin Shi2, Yannick Fillon1
1Oligonucleotide Process Development, Biogen, Cambridge, Massachusetts, USA.
Nucleic acid therapeutics
|February 5, 2024
概括
这项研究引入了piperazine作为一种新型的清洁剂在寡核酸合成,通过结合脱保护和裂解步骤简化制造. 这项创新大大减少了加工时间,溶剂使用量和关键杂质,如3-(2-乙烯) 乙胺 (CNET).
科学领域:
- 药用化学 医学化学
- 奥利冈核酸治疗药物制造业 制造业
- 过程化学 过程化学
背景情况:
- 氧核酸作为治疗剂越来越重要.
- 目前的制造涉及阶段性合成,需要单独的去保护和分离步骤.
- 一个关键的挑战是控制3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 的胺素 (CNET) 杂质,需要在切割前进行脱保护.
研究的目的:
- 开发一种更高效的寡核酸制造工艺.
- 为了减少溶剂消耗和加工时间.
- 为了最大限度地减少3 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 乙胺 (CNET) 杂质的形成.
主要方法:
- 研究了用皮佩拉作为烯酸清理剂的使用.
- 将去保护和裂变/去保护 (C&D) 结合在一个单一的步骤中,使用piperazine.
- 在支持的合成过程中评估了皮佩拉作为三乙烯胺替代物的保护.
主要成果:
- 皮佩拉能够将除保护和C&D结合在一个步骤中,减少溶剂使用和处理时间.
- 这一组合步骤有效降低了3-(2-乙) 乙胺 (CNET) 杂质水平.
- 在脱保护中用皮佩拉替换三乙烯胺可加快反应时间,并进一步减少CNET杂质.
结论:
- 皮佩拉是一种有效的清洁剂,可以简化寡核酸制造.
- 开发的单步工艺在效率和杂质控制方面提供了显著的优势.
- 这种方法为清洁和更快速生产寡核酸治疗药物提供了可行的策略.
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