Boc-Phe(3-I)-OH

Boc-Phe(2-I)-OH

Fmoc-Phe(3-I)-OH

Fmoc-Phe(4-I)-OH

Boc-Phe(4-I)-OH

H-Phe(4-I)-OH

(S)-α-(3-fluoro-benzyl)-proline.HCl

Boc-(S)-α-(3-methyl-benzyl)-proline

(R)-γ-allyl-L-prolineoHCl

(R)-γ-(4-tert-Butyl-benzyl)-L-prolineoHCl

(R)-γ-(3-cyano-benzyl)-L-proline.HCl

(R)-γ-(2-cyano-benzyl)-L-proline.HCl

(R)-γ-(4-trifluoromethyl-benzyl)-L-proline.HCl

(R)-γ-(2-trifluoromethyl-benzyl)-L-prolineoHCl

(R)-γ-(3,4-dichloro-benzyl)-L-prolineoHCl

(R)-α-(3-fluoro-benzyl)-proline.HCl