(S)-2,5-diamino-4-oxopentanoic acid dihydrochloride

benzyl L-2-benzyloxycarbonylamino-4-oxo-5-phthalimidopentanoate

(2S)-2-(dodecanoylamino)-3-(1H-imidazol-5-yl)propanoic acid

H-HIS-SER-OH

组胺酰胺