期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 139, 期 21, 页码 7152-7155出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.7b02761
关键词
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资金
- National Institutes of Health (NIH) [R01GM46059, S10RR-017208]
A practical procedure for (CN)-C-11-labeling of unprotected peptides has been developed. The method was shown to be highly chemoselective for cysteine over other potentially nucleophilic residues, and the radiolabeled products were synthesized and purified in less than 15 min. Appropriate for biomedical applications, the method could be used on an extremely small scale (20 nmol) with a high radiochemical yield. The success of the protocol stems from the use of a Pd-reagent based on a dihaloarene, which enables direct nucleophile-nucleophile coupling of the peptide and [C-11]cyanide by temporal separation of nucleophile addition.
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