Solid-phase synthesis of protected peptide fragments using a trialkoxy-diphenyl-methylester resin.

Abstract

A trialkoxy-diphenyl-methylester and amide linkage for solid-phase peptide synthesis with Fmoc strategy is described. Protected peptide esters can be smoothly cleaved with weak acid, resulting in fragments with intact side-chain protection. Mild acidic cleavage of the corresponding peptide amide resins yields peptide amides.