Building C(sp(3))-rich complexity by combining cycloaddition and C-C cross-coupling reactions.

Building C(sp(3))-rich complexity by combining cycloaddition and C-C cross-coupling reactions.
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通过结合环加成和 C-C 交叉偶联反应构建富含 C(sp(3)) 的复杂性。

DOI:
10.1038/s41586-018-0391-9
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发表时间:
2018-08
期刊:
影响因子:
64.8
通讯作者:
Baran PS
Baran PS
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Chen TG;Barton LM;Lin Y;Tsien J;Kossler D;Bastida I;Asai S;Bi C;Chen JS;Shan M;Fang H;Fang FG;Choi HW;Hawkins L;Qin T;Baran PS

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环加成反应因其在建立新的环系统和立体中心时迅速产生复杂性而备受赞誉,已在许多全合成中发挥作用,是化学学生教育的关键组成部分。同样,C-C交叉耦合方法由于其可编程性、模块化和可靠性而是综合所不可或缺的。在药物发现领域,对交叉偶联的过度依赖导致了平坦的富含sp2的结构的不成比例的表示。尽管环加成反应能够在一步中引入多个C(SP3)中心,但它们的使用率较低。这可能是因为每种特定类型的环加成反应的特殊空间和电子规则导致了显著的模块化缺失。在这里,我们展示了一种策略,利用这两种基本转化的最佳特征,并将它们组合成一个简单的序列,以实现模块化、对映选择性、可扩展和可编程的有用构建块、天然产品和用于药物发现的先导支架的制备。
Prized for their ability to rapidly generate complexity in building new ring systems and stereocenters, cycloadditions have featured in numerous total syntheses and are a key component in the education of chemistry students. Similarly, C–C cross-coupling methods are integral to synthesis due to their programmability, modularity, and reliability. Within the area of drug discovery, an overreliance on cross-coupling has led to a disproportionate representation of flat, sp2-rich architectures. Despite the ability of cycloadditions to introduce multiple C(sp3) centres in a single step, they are less used. This is likely due to a striking lack of modularity stemming from the idiosyncratic steric and electronic rules for each specific type of cycloaddition. Here, we demonstrate a strategy for taking the optimal features of these two essential transforms and combining them into one simple sequence to enable the modular, enantioselective, scalable, and programmable preparation of useful building blocks, natural products, and lead scaffolds for drug discovery.
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