帕拉催化酶选择性C-H化,以通过动态动力学分辨率获得平面-奇拉旋
Ziyang Dong1, Jia Li1, Ting Yao1
1Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875 (P. R., China.
Angewandte Chemie (International ed. in English)
|November 2, 2023
概括
研究人员开发了一种新的催化方法,用于合成平面 - 合体环旋. 这一突破使得这些有价值的化合物能够有效地生产,用于药物发现和催化剂设计.
科学领域:
- 有机化学 有机化学
- 催化剂是一种催化剂.
- 不对称的合成方法
背景情况:
- 平面 - 奇拉环旋在药物发现和催化剂设计中越来越重要.
- 这些分子的不对称合成在有机化学中提出了重大挑战.
研究的目的:
- 开发第一个 (((II) 催化选择性C-H烯化方法,用于前性循环.
- 为了克服长期以来的挑战,在平面 - 奇拉环球生物的催化不对称合成中.
主要方法:
- 使用Pd(II) 催化的C-H化反应对前性环素.
- 由于环的低旋转屏障,提高了动态运动分辨率.
- 研究了安萨链长度对奇拉性起源的影响.
主要成果:
- 首次实现了对前性环素的对抗选择性C-H化.
- 获得了高产率 (高达99%) 和优异的酶选择性 (高达>99% ee) 的平面 - 奇拉旋.
- 证明性源于环旋转约束,而不是C-N轴.
结论:
- 开发的Pd(II) 催化C-H激活方法对于合成平面-合式环素非常有效.
- 这种方法为生物活性分子的后期修改提供了广泛的基质范围和适用性.
- 这项研究澄清了旋风合成中的性质的起源.
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