
%0 Journal Article
%A Stewart, FHC 
%T The p-methoxybenzyl ester group in peptide synthesis
%J Australian Journal of Chemistry
%D 1968/10/01
%V 21
%N 10
%P 2543-2550
%K 
%R https://doi.org/10.1071/CH9682543
%U https://www.publish.csiro.au/paper/CH9682543 
%X p-Methoxybenzyl esters of protected amino acids and peptides have been  prepared by imidazole-promoted condensation of the corresponding p-nitrophenyl  esters with p-methoxybenzyl alcohol. The products included several o-nitrophenylsulphenyl dipeptide p-methoxybenzyl esters, and the use of p-methoxybenzyl as a carboxyl-protecting group was illustrated by the synthesis of a protected  pentapeptide fragment of a modified insulin A-chain sequence involving selective  acidic cleavage of a-nitrophenylsulphenyl. 
