Elimination–addition. Part XVI. Elimination in 2-sulphonylethyl carboxylates: a method for the protection of carboxy-groups in peptide synthesis
作者:A. W. Miller、C. J. M. Stirling
DOI:10.1039/j39680002612
日期:——
reaction provides the basis of a method for the protection of carboxy-groups during peptidesynthesis. The sequence involves formation of 2-toluene-p-sulphonylethyl esters of amino-acids or peptides which are then coupled with N-protected amino-acids to give fully protected peptides. These, on mild treatment with bases, liberate N-protected peptides. 2-Toluene-p-sulphonylethyl esters are stable under