Synthesis of ω-amino acid peptides related to leucine-enkephalin
- 1 January 1981
- journal article
- research article
- Published by CSIRO Publishing in Australian Journal of Chemistry
- Vol. 34 (11) , 2439-2447
- https://doi.org/10.1071/ch9812439
Abstract
Syntheses are described of four peptides with modified leucine-enkephalin sequences in which the native glycylglycyl segment is replaced by an ω-amino acid residue. o-Nitrophenylthio-ω-amino acids were used as intermediates, and it was found that the derivatives of 4-aminobutyric and 5-amino-valeric acids undergo facile intramolecular cyclization under the influence of N,N'-dicyclohexylcarbodiimide.Keywords
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