Studies on Peptides. LII. Application of the Trifluoromethanesulphonic Acid Procedure to the Synthesis of a Peptide with Somatostatin Activity

Abstract

Trifluoromethanesulphonic acid was applied to remove the protecting groups, Z and MBzl, from Z-Ala-Gly-Cys (MBzl)-Lys (Z)-Asn-Phe-Phe-Trp-Lys (Z)-Thr-Phe-Thr-Ser-Cys (MBzl)-OH to produce the peptide with somatostatin activity.