... POTENTIAL DERIVATIVES FOR PREPARATION OF 3H-LABELLED LYSINE CONTAINING PEPTIDES Andre N. Sasaki and Evanghelos Bricas % ... analogs of the nonapeptide “facteur thymique serique” or FTS 7,2 . We have thus developed a convenient method for the preparation of the N-acylated derivatives of the unsaturated ... Chim.Acta, 44, 159 (1961) - 5.AN Sasaki, JL Morgat and E.Bricas, Communication in the 16th Europ. Peptide Symp. ...