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改善二二二二 (2-CTC) 树脂激活的方法
Tanya Román1,2,3,4, Gerardo Acosta3,4, Beatriz G de la Torre5
1Núcleo Biotecnología Curauma, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile.
Methods and protocols
|September 22, 2023
概括
这项研究优化了2 - 二二二二 (2-CTC) 树脂激活,用于固相合成 (SPPS). 新方法使用较少的乙烯化物 (SOCl2),减少激活时间,并允许树脂重复使用,提高合成产量.
科学领域:
- 有机化学 有机化学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 2-二 (2-CTC) 树脂对于酸终结的固相合成 (SPPS) 是至关重要的.
- 这种树脂对水分敏感,导致负载和合成产量下降.
- 标准激活用硫乙烯化物 (SOCl2) 可能是苛刻和耗时的.
研究的目的:
- 为了优化2-CTC树脂的激活协议.
- 为了最大限度地减少硫乙烯化物 (SOCl2) 的使用和激活时间.
- 评估重新使用活性2-CTC树脂的可行性.
主要方法:
- 在无水二甲 (DCM) 中开发了一种优化的树脂激活程序,使用少量的乙 (SOCl2) 在无水二甲 (DCM) 中.
- 研究了不同度的SOCl2 (2%和25%),以达到不同的激活度.
- 根据优化的激活协议,评估了重复使用的2-CTC树脂的性能.
主要成果:
- 通过减少SOCl2和更短的反应时间 (5分钟) 实现了显著的树脂激活.
- 证明成功地重复使用2-CTC树脂,其合成产量与初次使用相比较.
- 控制的激活水平:2%的SOCl2产生高达44%的激活 (适用于较长的),而25%的SOCl2产生高达80%的激活.
结论:
- 优化的协议提高了2-CTC树脂激活效率和SPPS的稳定性.
- 减少试剂的使用和更短的激活时间有助于更可持续和更具成本效益的合成过程.
- 重复使用树脂的能力为实验室应用和扩展提供了显著的优势.
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