Nucleophilic catalysis of oxime ligation

被引:392
作者
Dirksen, Anouk
Hackeng, Tilman M.
Dawson, Philip E.
机构
[1] Scripps Res Inst, Skaggs Inst Chem Biol, Dept Cell Biol, La Jolla, CA 92037 USA
[2] Scripps Res Inst, Skaggs Inst Chem Biol, Dept Chem, La Jolla, CA 92037 USA
[3] Univ Maastricht, Cardiovasc Res Inst Maastricht, NL-6200 MD Maastricht, Netherlands
关键词
bioconjugation; nucleophilic catalysis; peptides; Schiff bases; transimination;
D O I
10.1002/anie.200602877
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Chemical Equation Presented) Aniline acts as a nucleophilic catalyst of oxime ligation in aqueous solution through formation of the orange-colored intermediate. The method is demonstrated by acceleration of the oxime ligation of peptides at pH 4.5 and pH 7, which extends the scope of this reaction to conditions relevant for the bioconjugation of macromolecules (see scheme). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:7581 / 7584
页数:4
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