Nd-Pyrazinylcarbonyl-L-ornithine

L-Proline 4-nitroanilide

L-脯氨酸4-硝基苯胺

Nin-Boc-L-tryptophan tert-butyl ester hydrochloride

L-Valine tert-butylamide 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