Formal total synthesis of enigmazole A

Andreas Meissner; Takayuki Kishi; Yuka Fujisawa; Yuto Murai; Hiroyoshi Takamura; Isao Kadota

doi:10.1016/j.tetlet.2018.11.017

Formal total synthesis of enigmazole A

Andreas Meissner, Takayuki Kishi, Yuka Fujisawa, Yuto Murai, Hiroyoshi Takamura, Isao Kadota

Research output: Contribution to journal › Article

2 Citations (Scopus)

Abstract

A stereoselective formal total synthesis of enigmazole A, a marine macrolide isolated from Cinachyrella enigmatica, is described. Lewis acid mediated intramolecular allylation of an α-acetoxy ether, prepared from alcohol and carboxylic acid fragments was carried out to construct the methylene THP ring with high stereoselectivity. The late-stage macrolactonization of the corresponding seco-acid provided a known synthetic intermediate of enigmazole A.

Original language	English
Pages (from-to)	4492-4495
Number of pages	4
Journal	Tetrahedron Letters
Volume	59
Issue number	51
DOIs	https://doi.org/10.1016/j.tetlet.2018.11.017
Publication status	Published - Dec 19 2018

Keywords

Allylation
Convergent synthesis
Enigmazole A
Macrolide
Reductive acetylation
Total synthesis

ASJC Scopus subject areas

Biochemistry
Drug Discovery
Organic Chemistry

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Meissner, A., Kishi, T., Fujisawa, Y., Murai, Y., Takamura, H., & Kadota, I. (2018). Formal total synthesis of enigmazole A. Tetrahedron Letters, 59(51), 4492-4495. https://doi.org/10.1016/j.tetlet.2018.11.017

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T1 - Formal total synthesis of enigmazole A

AU - Meissner, Andreas

AU - Kishi, Takayuki

AU - Fujisawa, Yuka

AU - Murai, Yuto

AU - Takamura, Hiroyoshi

AU - Kadota, Isao

PY - 2018/12/19

Y1 - 2018/12/19

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AB - A stereoselective formal total synthesis of enigmazole A, a marine macrolide isolated from Cinachyrella enigmatica, is described. Lewis acid mediated intramolecular allylation of an α-acetoxy ether, prepared from alcohol and carboxylic acid fragments was carried out to construct the methylene THP ring with high stereoselectivity. The late-stage macrolactonization of the corresponding seco-acid provided a known synthetic intermediate of enigmazole A.

KW - Allylation

KW - Convergent synthesis

KW - Enigmazole A

KW - Macrolide

KW - Reductive acetylation

KW - Total synthesis

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