phenylmethanaminium (S)-2-((R)-2-(benzylamino)-4-oxo-4-phenylbutanamido)-4-methylpentanoate

N-L-gamma-谷氨酰-L-亮氨酸

4-methyl-2-oxopentanal

DL-亮氨酰甘氨酸

DL-亮氨酰甘氨酰甘氨酸