Stereoretentive Suzuki-Miyaura coupling of haloallenes enables fully stereocontrolled access to (-)-peridinin.

Stereoretentive Suzuki-Miyaura coupling of haloallenes enables fully stereocontrolled access to (-)-peridinin.
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DOI:
10.1021/ja102721p
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发表时间:
2010-05-26
影响因子:
15
通讯作者:
Burke, Martin D.
Burke, Martin D.
中科院分区:
化学1区
文献类型:
--
作者:
Woerly, Eric M.;Cherney, Alan H.;Davis, Erin K.;Burke, Martin D.

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在合成(−)-多甲素的复杂和敏感的含立体异构丙二烯核心的实质性挑战的刺激下,首次实现了卤代丙二烯与硼酸的立体控制偶联。这种新方法和在其开发过程中出现的原理使得能够更有效和灵活地制备具有立体丙二烯基序的各种天然产物、药物和中间体。这个新的反应被用来实现第一个完全立体控制的全合成(-)-peridinin。该合成仅使用一个反应迭代地组装四个完全官能化的结构单元来完成,其中在每个初始卤化物或含硼碳处具有完全的立体保留。这种合成将迭代交叉耦合策略的能力提升到前所未有的基准。此外,这种合成的有效性和高度模块化的性质有望使系统解剖迄今为止神秘的结构/功能关系的基础上,这种显着的小分子天然产物的蛋白质样抗脂质过氧化活性。
Stimulated by the substantial challenge of synthesizing the complex and sensitive stereogenic allene-containing core of (−)-peridinin, the first stereocontrolled coupling of haloallenes with boronic acids has been achieved. This new method and the principles that emerged during its development stand to enable the more efficient and flexible preparation of a wide range of natural products, pharmaceuticals, and intermediates that possess a stereogenic allene motif. This new reaction was harnessed to achieve the first completely stereocontrolled total synthesis of (−)-peridinin. This synthesis was accomplished using only one reaction iteratively to assemble four fully functionalized building blocks with complete stereoretention at each initially halide or boron-bearing carbon. This synthesis elevates the capacity of the iterative cross-coupling strategy to an unprecedented benchmark. Moreover, the efficient and highly modular nature of this synthesis promises to enable systematic dissection of the heretofore enigmatic structure/function relationships that underlie the protein-like antilipoperoxidant activities of this remarkable small molecule natural product.
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