<i>N</i>-Methylation of Peptides on Selected Positions during the Elongation of the Peptide Chain in Solution Phase
作者:M. Luisa Di Gioia、Antonella Leggio、Angelo Liguori
DOI:10.1021/jo0478959
日期:2005.5.1
and general solution-phase method for the site-specific N-methylation of peptides has been developed. This novel procedure involves synthesis of N-nosyl protected peptides and their subsequent N-methylation with diazomethane. Its efficiency was proved by the successful synthesis of various hindered oligopeptides containing N-methyl amino acid residues with excellent yield and purity. The method is