Description
A hyper acid-labile resin for the Fmoc SPPS of protected peptide amides via mild 1% TFA cleavage [1,2]. The resin can be readily reductively alkylated to provide a support suited to the synthesis of secondary carboxamides [3].This resin has also been employed to produce protected peptide fragments in which the C-terminal carboxylic acid group is blocked as a hydroxymethylphenoxy-β-alaninamide ester