Welcome to Iris Biotech
For better service please confirm your country and language we detected.confirm selection
Pavel S. Chelushkin, Ksenia V. Polyanichko, Maria V. Leko, Marina Yu. Dorosh, Thomas Bruckdorfer and Sergey V. Burov
Tetrahedron Letters 2015; 56: 619–622; DOI: 10.1016/j.tetlet.2014.12.056
Abstract: Peptide hydrazides can be easily synthesized using a new hydrazone resin, obtained via acylation of aminomethyl polystyrene by Fmoc-hydrazone of pyruvic acid. It was shown that the hydrazone linker is completely stable in the course of standard Fmoc SPPS. Moreover, it can tolerate a treatment with 5% TFA/DCM thus permitting selective removal of Mtt or related acid-labile protecting groups. Subsequent application of cleavage cocktails containing net TFA permits to obtain the desired peptides in a reasonable yields and purity. Synthesized peptide hydrazides can be applied as building blocks for the conjugation with different carrier molecules using hydrazone ligation technique.