Building Functionalized Peptidomimetics: Use of Electroauxiliaries for Introducing <i>N</i>-Acyliminium Ions into Peptides
作者:Haizhou Sun、Connor Martin、David Kesselring、Rebecca Keller、Kevin D. Moeller
DOI:10.1021/ja064737l
日期:2006.10.1
A series of silyl-substituted amino acids have been synthesized, inserted into peptides, and then employed as precursors for oxidatively generating reactive N-acyliminium ions. Both electrochemical and chemical oxidation procedures have been employed. N-Acyliminium ion generation in a solid-phase substrate as well as application to a small library of functionalized dipeptides has been demonstrated. Limitations in terms of how electron-rich the silyl groups can be as well as the compatibility of multiple silyl groups within a longer peptide are defined.
A Tamao–Fleming oxidation route to dipeptides bearing N,O-acetal functionality
作者:Sherif M.S. Ibrahim、Koushik Banerjee、Kara A. Slater、Gregory K. Friestad
DOI:10.1016/j.tetlet.2017.11.036
日期:2017.12
Tamao-Fleming oxidation of the N-dimethylphenylsilylmethyl group linked to the nitrogen of a peptide bond enables access to dipeptide N,O-acetal functionality. The N-silylmethyl functionality serves as a latent form of the N,O-acetal which is revealed after peptide bond construction. (C) 2017 Published by Elsevier Ltd.