L-Proline 4-methoxy-b-naphthylamide hydrochloride

L-Pyroglutamyl-L-alanine

焦谷氨酰丙氨酸

Z-L-phenylalanine methyl ester

Z-Gly-Gln-OH

Acetyl-D-tyrosine methyl ester

S-4-Methylbenzyl-D-penicillamine

3,4-Dehydro-L-proline amide hydrochloride

Z-(4-tert-butyloxycarbonyl)-L-phenylalanine

(2S,5R)-5-Phenylpyrrolidine-2-carboxylic acid

S-Benzyl-D-penicillamine

Z-Pro-Gly-NH2