Collect. Czech. Chem. Commun. 1981, 46, 286-299
https://doi.org/10.1135/cccc19810286

Synthesis of oxytocin, arginine-vasopressin and its deamino-analogue using 2,4,6-trimethylbenzyl group for protection of the cysteine sulfur

František Brtník, Milan Krojidlo, Tomislav Barth and Karel Jošt

Institute of Organic Chemistry and Biochemistry, Czechoslovak Academy of Sciences, 166 10 Prague 6

Abstract

Preparation of oxytocin, arginine-vasopressin and its deamino-analogue serves as an example of use of 2,4,6-trimethylbenzyl group for protection of the cysteine sulfur atom in the peptide synthesis. This modified benzyl group is sufficiently stable under conditions of solvolytic removal of common amino-protecting groups and it can be cleaved off under mild conditions with liquid hydrogen fluoride or trifluoromethanesulfonic acid.