In situ generation of Fmoc-amino acid chlorides using bis(trichloromethyl) carbonate and its utilization for difficult couplings in solid-phase peptide synthesis

被引:135
作者
Falb, E
Yechezkel, T
Salitra, Y
Gilon, C [1 ]
机构
[1] Hebrew Univ Jerusalem, Dept Organ Chem, IL-91904 Jerusalem, Israel
[2] Peptor Ltd, IL-76326 Rehovot, Israel
来源
JOURNAL OF PEPTIDE RESEARCH | 1999年 / 53卷 / 05期
关键词
acid chlorides; backbone cyclic peptides; bis(trichloromethyl)carbonate; difficult couplings; N-alkylated amino acids; solid-phase peptide synthesis;
D O I
10.1034/j.1399-3011.1999.00049.x
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
This paper reports procedures for the straightforward in situ generation of Fmoc-amino acid chlorides using bis(trichloromethyl)carbonate (BTC) and their utilization for difficult couplings during solid-phase peptide synthesis. The BTC-mediated coupling of all Fmoc-protected proteinogenic amino acids to a large variety of N-alkylated amino acid-peptidyl-resin was studied. The majority of the couplings proceeded with quantitative conversion and without racemization. The utilization of ETC-mediated coupling for facile solid-phase synthesis of backbone cyclic peptides is presented.
引用
收藏
页码:507 / 517
页数:11
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