相关实验视频
Updated: Jan 8, 2026

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Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
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通过短暂的指导组的不同行为,可以通过可切换的类素和异类素接入类素
Xianwen Zeng1, Wen Fu1, Xiaoxiao Huang1
1Gannan Innovation and Translational Medicine Research Institute, Gannan Medical University, Ganzhou 341000, China.
Organic letters
|December 18, 2025
概括
一种新的xylamine-O-sulfonic acid (HOSA) 方法使可切换的C-H功能化能够合成oline或异oline衍生物. 这种高效的路径简化了异环合成和药物制备.
科学领域:
- 有机化学 有机化学
- 合成化学 合成化学
- 药用化学 医学化学
背景情况:
- C-H功能化和无效化是有机合成中的关键反应.
- 开发高效和选择性的合成异环化合物的方法,如诺林和异诺林,仍然是一个重大挑战.
- 目前的合成路线通常涉及多个步骤,缺乏广泛的适用性.
研究的目的:
- 开发一种新的,单一的方法,用于合成氨酸和异氨酸衍生物.
- 确定xylamine-O-sulfonic acid (HOSA) 作为C-H功能化的催化暂时定向组.
- 为了证明这种方法在简化重要药物化合物的合成方面的实用性.
主要方法:
- 使用氧胺-O-硫酸 (HOSA) 进行可切换的C-H功能化/取消.
- 使用乙烯基和α,β不和基作为起始材料.
- 通过选择HOSA衍生过渡指导组,溶剂和温度来控制反应途径.
主要成果:
- 一种可调节的单合成,产生具有高选择性的氨酸或异氨酸衍生物.
- 证明了广泛的基质范围和出色的功能组耐受性.
- 实现了抗贫血药物roxadustat的简化三步合成,大大减少了之前的九步过程.
结论:
- xylamine-O-sulfonic acid (HOSA) 作为一种强大的催化过渡指导组,用于选择性C-H取消.
- 这一策略为合成多样化的异环提供了一个新的,高效的范式.
- 开发的方法显著提高了合成效率,特别是在制药应用中.
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