Abstract The solid phase synthesis of an amidated somatostatin analogue based on the principle of differentiated acidolysis is described. The acid labile and smoothly cleavable t- Bumeoc moiety (1% TFA/DCM) is used for temporary N α-protection of D-and L-amino acids and [4-[[[9H-fluoren-9-yl-methoxycarbonyl] amino](4-methoxyphenyl) methyl]-2- methylphenoxy] acetic acid, attached to an aminomethylated polystyrene resin is used as ...