作者:Floris Rutjes、Stan Groothuys、Brian Kuijpers、Peter Quaedflieg、Harlof Roelen、Roel Wiertz、Richard Blaauw、Floris van Delft
DOI:10.1055/s-2006-942509
日期:——
Triazole-linked glycopeptides are prepared by C-terminal elongation of glycoamino acids with proteinogenic amino acids following a chemical or enzymatic coupling protocol. Two orthogonal routes for a chemoenzymatic strategy were explored, involving a click-reaction before amide bond formation or in reverse order. It was found that enzymatic peptide coupling under the influence of alcalase proceeds cleanly and in high yields, while the resulting dipeptides can be efficiently clicked to acetylene- or azide-containing sugars.
三氮唑联接的糖肽通过糖氨基酸的C端延伸,与蛋白质氨基酸按照化学或酶促耦合协议制备。探索了两条正交路径的化学酶促策略,涉及在酰胺键形成之前或顺序相反的点击反应。研究发现,在碱性蛋白酶的影响下,酶促肽耦合过程顺利进行且产率较高,同时所得的二肽可以高效地与含有炔烃或叠氮的糖发生点击反应。