Activation of O-(2-bromobenzyloxycarbonyl)-N-Boc-L-tyrosine (I) as the mixed anhydride (II) with isobutyl chloroformate, followed by coupling with n-octylamine (III), furnished amide (IV). The Boc protecting group of (IV) was then removed by treatment with HCl in dioxan to give amine (V). After activation of trans-4-(aminomethyl)cyclohexanecarboxylic acid (VI) as the mixed anhydride (VII), its coupling with amine (V) provided adduct (VIII). Finally, the cleavage of the Boc protecting group of (VIII) by means of HCl in dioxan yielded the title compound.