Combined Chemical and Enzymatic Synthesis of a <i>C</i>-Glycopeptide and Its Inhibitory Activity toward Glycoamidases
作者:Lai-Xi Wang、Mei Tang、Tadashi Suzuki、Ken Kitajima、Yasuo Inoue、Sadako Inoue、Jian-Qiang Fan、Yuan C. Lee
DOI:10.1021/ja9712027
日期:1997.11.1
A novel chemoenzymatic approach to synthesizing high-mannose-typeN-glycopeptide and its C-linked glycopeptide analog is described. The synthesis consists of two steps: a chemical synthesis of GlcNAc-containing peptides and an enzymatic glycosyl transfer of Man9GlcNAc to the terminal GlcNAc in the peptides in an aqueous medium containing organic solvents. The essential enzyme used is an endo-β-N-a
Investigation of acyl transfer auxiliary-assisted glycoconjugation for glycoprotein semi-synthesis
作者:Kudakwashe Nyandoro、Charles M. G. Lamb、Haoran Yu、Jian Shi、Derek Macmillan
DOI:10.1039/d2ob01633h
日期:——
due to advances in chemicalligation strategies, particularly NativeChemicalLigation (NCL). For native glycoproteins this still requires laborious and technically challenging syntheses of glycopeptide components, combined with multi-segment ligation reactions. Here we explore new reactions between sugar-linked acyl transfer auxiliaries and peptide thioesters. We show that native glycoproteins are