General Synthetic Approach to Diverse Taxane Cores.

General Synthetic Approach to Diverse Taxane Cores.
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多种紫杉烷核的一般合成方法。

DOI:
10.1021/jacs.2c10272
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发表时间:
2022-11-23
影响因子:
15
通讯作者:
Sarpong, Richmond
Sarpong, Richmond
中科院分区:
化学1区
文献类型:
--
作者:
Perea, Melecio A.;Wang, Brian;Wyler, Benjamin C.;Ham, Jin Su;O'Connor, Nicholas R.;Nagasawa, Shota;Kimura, Yuto;Manske, Carolin;Scherubl, Maximilian;Nguyen, Johny M.;Sarpong, Richmond

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相似文献

天然产物的化学合成通常受到目标分子的结构和功能的启发。当这两个因素都令人感兴趣时,例如紫杉烷二萜类化合物,合成既可以作为合成策略开发的平台,又可以实现新的生物探索。在这一范式的指导下,我们在这里提出了一种统一的对映特异性方法,从原料单萜(S)-香芹酮中提取不同的紫杉烷核心。我们的方法成功的关键是使用骨架重塑策略,该策略从两个香芹酮衍生片段的发散重组和聚合耦合开始,并由 Pd 催化的 C-C 键裂解策略促进。这种偶联之后是使用 Sm(II) 介导的重排和生物启发的可见光诱导的跨环 [2 + 2] 光环加成进行额外的重组。总体而言,这种用于复杂二萜合成的发散单萜重塑/会聚片段偶联方法提供了获得结构不同的紫杉烷核心的途径,这为制备各种紫杉烷奠定了基础。
Chemical synthesis of natural products is typically inspired by the structure and function of a target molecule. When both factors are of interest, such as in the case of taxane diterpenoids, a synthesis can both serve as a platform for synthetic strategy development and enable new biological exploration. Guided by this paradigm, we present here a unified enantiospecific approach to diverse taxane cores from the feedstock monoterpenoid (S)-carvone. Key to the success of our approach was the use of a skeletal remodeling strategy which began with the divergent reorganization and convergent coupling of two carvone-derived fragments, facilitated by Pd-catalyzed C–C bond cleavage tactics. This coupling was followed by additional restructuring using a Sm(II)-mediated rearrangement and a bioinspired, visible-light induced, transannular [2 + 2] photocycloaddition. Overall, this divergent monoterpenoid remodeling/convergent fragment coupling approach to complex diterpenoid synthesis provides access to structurally disparate taxane cores which have set the stage for the preparation of a wide range of taxanes.
DOI: 10.1021/jacs.0c03592
发表时间: 2020-06-10
影响因子: 15
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