Synthesis 2025; 57(18): 2677-2682
DOI: 10.1055/a-2618-0514
Paper

Total Synthesis of Isatisindigoticanine H

Authors

  • Krishna R. Wabale

    1   Organic Chemistry, CSIR–National Chemical Laboratory, Pune, India (Ringgold ID: RIN29616)
    2   Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
  • Chepuri Venkata Ramana

    1   Organic Chemistry, CSIR–National Chemical Laboratory, Pune, India (Ringgold ID: RIN29616)
    2   Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India

Supported by: UGC
Supported by: CSIR
Supported by: SERB CRG/2021/005729
Funding Information We thank SERB (CRG/2021/005729) for funding this project and CSIR-UGC for a fellowship to KRW.


Graphical Abstract

Abstract

The first total synthesis of the naturally occurring isatisindigoticanine H has been completed by employing D-mannitol as the chiral pool precursor to install the requisite stereochemistry of the natural product. Construction of the thiazole unit by dehydrative cyclization of a α-halo ketone with thiourea followed by Sandmeyer’s reaction and subsequent nucleophilic addition of lithiated bromothiazole to the Weinreb amide are the key reactions employed in this regard.



Publication History

Received: 04 April 2025

Accepted after revision: 21 May 2025

Accepted Manuscript online:
21 May 2025

Article published online:
25 July 2025

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