Synthesis 2023; 55(12): 1940-1948
DOI: 10.1055/a-2012-5187
paper
Special Issue Honoring Prof. Guoqiang Lin's Contributions to Organic Chemistry

Aza-Wacker Cyclization Toward the Bridged Core of FR901483

Authors

  • Defeng Shen

    a   CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. of China
  • Changmin Xie

    a   CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. of China
  • Zhuwei Ruan

    a   CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. of China
  • Chen Yang

    a   CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. of China
  • Sha-Hua Huang

    b   School of Environmental and Chemical Engineering, Shanghai Institute of Technology, Shanghai 201418, P. R. of China
  • Lili Zhu

    a   CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. of China
  • Ran Hong

    a   CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. of China

Financial support from the National Natural Science Foundation of China (22171281 and 22271194) and the Science and Technology Commission of Shanghai Municipality (20XD1404700) is greatly appreciated.


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Abstract

A nine-step synthetic route to access the tricyclic core of FR901483 is reported, featuring a key aza-Wacker cyclization step to construct an α-tertiary amine (ATA) in the bridged structure. The aza-Wacker protocol can tolerate both exocyclic and endocyclic double bonds, providing viable access to various bridged bicyclic rings bearing an ATA (e.g., 6-azabicyclo[3.2.1]octane, 7-azabicyclo[3.3.1]nonane, and 7-azabicyclo[4.2.1]nonane) in good to excellent yields. The synthetic studies presented herein enable structural derivatization of FR901483 to further exploit its compelling biological activities.

Supporting Information



Publication History

Received: 24 December 2022

Accepted after revision: 13 January 2023

Accepted Manuscript online:
13 January 2023

Article published online:
06 February 2023

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