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Solid-phase synthesis of 5-arylhistidine-containing peptides with antimicrobial activity through a microwave-assisted Suzuki-Miyaura cross-coupling

A microwave-assisted solid-phase Suzuki-Miyaura reaction has been employed for the synthesis of 5-arylhistidine-containing peptides. In particular, sequences containing a 5-arylhistidine at the 1- or 4-positions have been designed based on lead antimicrobial peptides. The cross-coupling involved the arylation of a resin-bound 5-bromohistidine with an arylboronic acid in solution under microwave irradiation. This protocol is compatible with common protecting groups used in peptide chemistry. The resulting biaryl linear undecapeptides were screened for their antibacterial, antifungal and hemolytic activities. The results showed that the presence of an imidazole ring significantly decreases the cytotoxicity. A solid-phase Suzuki-Miyaura reaction has been applied to the synthesis of 5-arylhistidine undecapeptides. The biaryl peptides displayed low hemolytic antimicrobial activity

I. N.-C. thanks the Spanish Ministerio de Ciencia e Innovación (MICINN) for a predoctoral fellowship. This work was supported by MICINN grants, AGL2006-13564/AGR and AGL2009-13255-C02-02/AGR

Wiley-VCH Verlag

Director: Ministerio de Educación y Ciencia (Espanya)
Ministerio de Ciencia e Innovación (Espanya)
Autor: Ng-Choi, Iteng
Soler Vives, Marta
Cerezo Frias, Vanessa
Badosa Romañó, Esther
Montesinos Seguí, Emilio
Planas i Grabuleda, Marta
Feliu Soley, Lídia
Resum: A microwave-assisted solid-phase Suzuki-Miyaura reaction has been employed for the synthesis of 5-arylhistidine-containing peptides. In particular, sequences containing a 5-arylhistidine at the 1- or 4-positions have been designed based on lead antimicrobial peptides. The cross-coupling involved the arylation of a resin-bound 5-bromohistidine with an arylboronic acid in solution under microwave irradiation. This protocol is compatible with common protecting groups used in peptide chemistry. The resulting biaryl linear undecapeptides were screened for their antibacterial, antifungal and hemolytic activities. The results showed that the presence of an imidazole ring significantly decreases the cytotoxicity. A solid-phase Suzuki-Miyaura reaction has been applied to the synthesis of 5-arylhistidine undecapeptides. The biaryl peptides displayed low hemolytic antimicrobial activity
I. N.-C. thanks the Spanish Ministerio de Ciencia e Innovación (MICINN) for a predoctoral fellowship. This work was supported by MICINN grants, AGL2006-13564/AGR and AGL2009-13255-C02-02/AGR
Accés al document: http://hdl.handle.net/2072/297588
Llenguatge: eng
Editor: Wiley-VCH Verlag
Drets: Tots els drets reservats
Matèria: Antibiòtics pèptids
Peptide antibiotics
Pèptids -- Síntesi
Peptides -- Synthesis
Medicaments antiinfecciosos
Anti-infective agents
Títol: Solid-phase synthesis of 5-arylhistidine-containing peptides with antimicrobial activity through a microwave-assisted Suzuki-Miyaura cross-coupling
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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