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Benzisoxazoles: new routes to coleophomone analogues

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posted on 2014-11-19, 11:21 authored by Alexander Chatterley
This project has been part of an ongoing interest in metabolites with a cyclic tricarbonyl motif 1, usually enolised. Coleophomones A C have a unique architecture with the cyclic tricarbonyl motif embedded in an 11-membered ring: A & B exist in aldol equilibrium, B & C are geometric isomers, and D lacks the macrocycle.1,2 Antifungal & antibiotic activity, and inhibition of human heart chymase & bacterial cell-wall transglycosylase, has generated synthetic interest. In an approach distinct from reported studies,3 we propose 4-carbonyl-substituted isoxazoles, from dipolar cycloaddition of nitrile oxides, as building blocks for the tricarbonyl framework. During this investigation precursors to the macrocycles of coleophomones A, B, C and analogues were developed. En route to these precursors we have uncovered and probed a facile and highly unusual benzisoxazole to oxazole rearrangement. *Schemes and figures relating to the abstract can be found within the document proper.

Funding

Loughborough University and Lilly UK

History

School

  • Science

Department

  • Chemistry

Publisher

© Alexander Chatterley

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2014

Notes

A Doctoral Thesis. Submitted in partial fulfilment of the requirements for the award of Doctor of Philosophy of Loughborough University.

EThOS Persistent ID

uk.bl.ethos.631634

Language

  • en

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