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Synthesis of thiophenylalanine-containing peptides via Cu(I)-mediated cross-coupling.


ABSTRACT: Aryl thiolates have unique reactive, redox, electronic, and spectroscopic properties. A practical approach to synthesize peptides containing thiophenylalanine has been developed via a novel Cu(I)-mediated cross-coupling reaction between thiolacetic acid and iodophenylalanine-containing peptides in the solid phase. This approach is compatible with all canonical proteinogenic functional groups, providing general access to aryl thiolates in peptides. Peptides containing thiophenylalanine (pK(a) 6.4) were readily elaborated to contain methyl, allyl, and nitrobenzyl thioethers, disulfides, sulfoxides, sulfones, or sulfonates.

SUBMITTER: Forbes CR 

PROVIDER: S-EPMC3725732 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature

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Synthesis of thiophenylalanine-containing peptides via Cu(I)-mediated cross-coupling.

Forbes Christina R CR   Zondlo Neal J NJ  

Organic letters 20120106 2


Aryl thiolates have unique reactive, redox, electronic, and spectroscopic properties. A practical approach to synthesize peptides containing thiophenylalanine has been developed via a novel Cu(I)-mediated cross-coupling reaction between thiolacetic acid and iodophenylalanine-containing peptides in the solid phase. This approach is compatible with all canonical proteinogenic functional groups, providing general access to aryl thiolates in peptides. Peptides containing thiophenylalanine (pK(a) 6.4  ...[more]

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