(S)-2-(3,5-Dinitro-4-oxo-4H-pyridin-1-yl)-4-methylsulfanyl-butyric acid

L-苯丙氨酰-L-蛋氨酸

CYCLO(-PHE-PHE)

L-蛋氨酰-L-蛋氨酰-L-蛋氨酸

H-MET-MET-OH