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用不同的机制运行的同一个催化剂统一的状7和8个成员环

Nicolò Tampellini¹, Brandon Q Mercado¹, Scott J Miller¹

¹Department of Chemistry, Yale University, New Haven, Connecticut 06520, United States.

Journal of the American Chemical Society

|January 23, 2025

概括

这项研究引入了一种新的有机催化方法,用于合成中等尺寸的环,克服了药物开发中的先前合成挑战. 这种方法使得具有内在性的七个和八个环的酶选择性形成成为可能.

科学领域:

有机化学
不对称的催化
医学化学

背景情况:

在药物开发中中等大小的Chiral环是有价值的,但在合成上难以获得.
现有的7个和8个环形形成的催化酶选择方法是有限的或未知的.
在前体中固体拥挤复杂化了体环的循环化过程.

研究的目的:

开发一种用于构建性七个和八个环的新型酶选择性器官催化策略.
解决与形成紧张的合成挑战.
创建具有内在奇拉性的环, 独立于传统的立体中心或轴.

主要方法:

使用基板预组织方法.
使用双功能的伊米诺化催化剂.
开发了一种酶选择性,有机催化循环化策略.
在温和条件下研究反应.

主要成果:

成功合成了具有高立体控制的七个和八个环.
证明了催化剂通过不同的机械路径来编排循环.
实现具有内在性的环形形成,不依赖于单独的立体原子或键轴.
展示了这种方法在不同尺寸的戒指上的多功能性.

结论:

开发的器官催化策略为合成具有挑战性的中型环提供了有效的解决方案.
该方法在环大小和机制上的多功能性为循环反应中的不对称催化提供了一个新的范式.
这项工作为复杂分子合成中不对称催化剂的更广泛应用铺平了道路.

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