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Cyclic tetrapetides via the ring contraction strategy: chemical techniques useful for their identification
Journal article   Peer reviewed

Cyclic tetrapetides via the ring contraction strategy: chemical techniques useful for their identification

Douglas A Horton, Gregory T Bourne, Justin Couglan, Sonya M Kaiser, Carolyn Jacobs, Alun Jones, Andreas Ruhmann, Jill Y Turner and Mark L Smythe
Organic & Biomolecular Chemistry, Vol.6(8), pp.1386-1395
2008
url
https://doi.org/10.1039/B800464AView
Published Version

Abstract

Medicinal and Biomolecular Chemistry Organic Chemistry
Cyclic tetrapeptides are a class of natural products that have been shown to have broad ranging biological activities and good pharmacokinetic properties. In order to synthesise these highly strained compounds a ring contraction strategy had previously been reported. This strategy was further optimised and a suite of techniques, including the Edman degradation and mass spectrometry/mass spectrometry, were developed to enable characterisation of cyclic tetrapeptide isomers. An NMR solution structure of a cyclic tetrapeptide was also generated. To illustrate the success of this strategy a library of cyclic tetrapeptides was synthesised.

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