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Solid phase synthesis of C-terminal peptide amides: development of a new aminoethyl-polystyrene linker on the
1Chiron Technologies Pty. Ltd, Clayton, Vic., Australia. chinh_thien_bui@cc.chiron.com
Abstract:
A new aminoethyl-polystyrene linker, stable at low concentrations of TFA, has been developed for the solid phase synthesis of peptide amides. The described linker is stable under conditions which remove Bu(t) protecting groups (30-50% TFA in DCM) and the desired product can be finally cleaved off the solid support in 95% TFA (5% H2O). Model peptide amides and other N-alkylated peptide amides have been successfully synthesized in good yield and purity.