N-(2-Chlorotrityl resin)-O-tert-butyl-L-tyrosine benzotriazolyl ester

Ac-Phe-Tyr-OH

Boc-D-Met-Gly-OH

a-Methyl-DL-valine

g-Glu-4-Abz-OH

Ala-Val-OH

D-Leu-Gly-OH

O-Benzyl-D-threonine amide hydrochloride

Ne-4-Nitro-Z-L-lysine

L-Proline 4-nitroanilide hydrobromide

L-Threonine methylamide