帕拉3-利胺) (PPAP) 糖化物:利用ipso循环驱动的糖化为战略灵活性提供灵活性
Meifang Yang1, Yanli Qiu1, Yan Tan1
1Shanghai Frontiers Science Center of TCM Chemical Biology, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
Science advances
|July 25, 2025
概括
帕拉-3-利胺) (PPAP) 糖化物为碳水化合物合成提供了一种新的方法. 这些甘氨基基捐赠体通过独特的激活机制实现了高效的O和N-甘氨基化,简化了复杂的碳水化合物结构.
科学领域:
- 碳水化合物化学 碳水化合物化学
- 有机合成 有机合成
- 葡萄糖酶化化学化学 葡萄糖酶化化学
背景情况:
- 复杂碳水化合物的高效合成对于药物发现和材料科学至关重要.
- 现有的甘氨基基捐赠剂通常在稳定性,反应性或合成可访问性方面存在局限性.
研究的目的:
- 引入一种新型的甘氨基基捐赠剂类别,即帕拉-3-利胺) (PPAP) 甘氨基酸.
- 探索 PPAP 糖化物在碳水化合物合成中的独特激活机制和合成效用.
主要方法:
- 通过胺合合成PPAP糖化物.
- 使用N-iodosuccinimide (NIS) /trimethylsilyl trifluoromethanesulfonate (TMSOTf) 激活的糖基化反应.
- 密度函数理论 (DFT) 计算,以了解反应机制和捐赠者设计.
主要成果:
- PPAP糖化物表现出内在稳定的联,并通过ipso-cyclization-mediated激活进行糖化.
- 这些捐赠体有效地支持O-和N-糖化在广泛的基质范围内.
- PPAP捐赠者表现出对标准激活方法的正交性,使模块化,单策略成为可能.
结论:
- PPAP糖化物代表了一种多功能和强大的新型糖基素供体.
- 它们的简单合成,强大的性能和独特的反应性简介有助于高效地构建复杂碳水化合物.
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