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Solid-Phase Synthesis of Peptide Conjugates Derived from the Antimicrobial Cyclic Decapeptide BPC194

The solid-phase conjugation of the antimicrobial peptide c(KKLKKFKKLQ) (BPC194) to a linear or cyclic sequence through a 1,2,3-triazole ring is described. Cyclic alkynyl-peptidyl resins derived from BPC194 were treated with azidopeptides derived from the antimicrobial peptide BP100 or from the bacteriocin iturin A. The cyclic alkynyl-peptidyl resins incorporated at the 3-position a propargylglycine, a glutamic acid residue derivatized with propargylamine or a lysine bearing a propioloyl group. The reactions of the cyclic alkynyl resins with the BP100-derived azidopeptides depended on the length and the sequence of the azidopeptides. The reactions were performed by treatment of the alkynyl resin with CuI and ascorbic acid, and required the presence of piperidine/DMF or DIEA in 2,6-lutidine/DMF. The latter conditions also allowed the conjugation of the alkynyl-peptidyl resin bearing a propioloyl lysine to a linear or cyclic azidopeptide derived from the cyclic moiety of iturin A

S. V. was recipient of a predoctoral fellowship from the Generalitat de Catalunya. This work was supported by the Spanish Ministerio de Economia y Competitividad (MINECO) (grant numbers AGL2009-13255-C02-02/AGR and AGL2012-39880-C02-02)

Wiley-VCH Verlag

Manager: Ministerio de Ciencia e Innovación (Espanya)
Author: Vilà Roura, Sílvia
Badosa Romañó, Esther
Montesinos Seguí, Emilio
Feliu Soley, Lídia
Planas i Grabuleda, Marta
Abstract: The solid-phase conjugation of the antimicrobial peptide c(KKLKKFKKLQ) (BPC194) to a linear or cyclic sequence through a 1,2,3-triazole ring is described. Cyclic alkynyl-peptidyl resins derived from BPC194 were treated with azidopeptides derived from the antimicrobial peptide BP100 or from the bacteriocin iturin A. The cyclic alkynyl-peptidyl resins incorporated at the 3-position a propargylglycine, a glutamic acid residue derivatized with propargylamine or a lysine bearing a propioloyl group. The reactions of the cyclic alkynyl resins with the BP100-derived azidopeptides depended on the length and the sequence of the azidopeptides. The reactions were performed by treatment of the alkynyl resin with CuI and ascorbic acid, and required the presence of piperidine/DMF or DIEA in 2,6-lutidine/DMF. The latter conditions also allowed the conjugation of the alkynyl-peptidyl resin bearing a propioloyl lysine to a linear or cyclic azidopeptide derived from the cyclic moiety of iturin A
S. V. was recipient of a predoctoral fellowship from the Generalitat de Catalunya. This work was supported by the Spanish Ministerio de Economia y Competitividad (MINECO) (grant numbers AGL2009-13255-C02-02/AGR and AGL2012-39880-C02-02)
Document access: http://hdl.handle.net/2072/296154
Language: eng
Publisher: Wiley-VCH Verlag
Rights: Tots els drets reservats
Subject: Pèptids -- Síntesi
Peptides -- Synthesis
Compostos orgànics -- Síntesi
Organic compounds -- Synthesis
Compostos heterocíclics -- Síntesi
Heterocyclic compounds -- Synthesis
Title: Solid-Phase Synthesis of Peptide Conjugates Derived from the Antimicrobial Cyclic Decapeptide BPC194
Type: info:eu-repo/semantics/article
Repository: Recercat

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