造结构复杂性:密集替代β-乳酸盐的二重选择合成,具有双重功能手柄,用于增强核心修改
Agustin M Rodriguez Treviño1, Pierre Loch-Temzelides1, Sanjay Pandiri1
1Department of Chemistry, Rice University Houston Texas 77030 USA kurti.laszlo@rice.edu.
Chemical science
|August 22, 2024
概括
合成具有C-Br和N-O键的β-乳酸盐具有挑战性. 这项研究引入了一种新的NBS介导的循环化方法,以有效地产生多样化的α-bromo N-alkoxy beta-lactams.
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:
- β-乳酸环是许多抗生素中至关重要的药.
- 同时将C-Br和N-O键合并到β-乳酸盐中,是一个重要的合成障碍.
- 现有的方法缺乏有效的途径来实现功能化的β-乳支架.
研究的目的:
- 开发一种用于合成α-bromo N-alkoxy beta-lactams的新和异质选择性方法.
- 建立一个通用的合成策略,以获取多样化的β-乳酸结构.
- 为了证明内置的功能手柄的实用性,用于进一步的分子处理.
主要方法:
- 通过NBS介导的N-alkoxyalpha,β不和的西胺基乙烯的循环.
- 灾难选择性合成方法.
- 合成的β-乳酸衍生物的特征.
主要成果:
- 成功合成了近三十个具有高 diastereoselectivity 的α-bromo N-alkoxyβ-lactams.
- 实现了对单环,螺旋环和化β-乳酸系统的快速和方便的访问.
- 在循环化反应中表现出中等到良好的产量.
- 验证了C-Br和N-O债券对于随后的合成修改的有用性.
结论:
- 开发的NBS介导循环化为制备功能化β-乳酸盐的挑战提供了有效的解决方案.
- 这种方法为生成用于药物发现的多样化的β-乳酸库提供了一个有价值的平台.
- 双重功能手柄使得β-乳酸核心结构的简单多样化成为可能.
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