L-苯丙氨酸甲酯

N-t-butoxycarbonyl-L-phenylalanine anhydride

(2S)-1-benzyl-N-(2-formylphenyl)pyrrolidine-2-carboxamide

(ALA2)-蛋氨酸脑啡肽乙酸酯

Cbz-L-Phe-L-Met-NH2