Quantitative description of epimerization pathways using the carbodiimide method in the synthesis of peptides
作者:Carola Griehl、Alfred Kolbe、Susanne Merkel
DOI:10.1039/p29960002525
日期:——
mechanism of epimerization in carbodiimidesynthesis has been investigated by varying the side chain of the activated acids. A series of peptides N-benzyloxycarbonyl-Ala-Xaa-OH with 20 different residues Xaa were coupled with valine methyl ester in dichloromethane and dimethylformamide. The kinetic data and the extent of epimerization were determined for the peptide synthesis and the aminolysis of isolated