(R)-2-amino-4-methyl-pentanoic acid benzyl ester

Boc-D-亮氨酸

ethyl (R)-4-(carboxyamino)-6-methyl-3-oxoheptanoate 4-tert-butyl ester

N-甲酰基-DL-亮氨酸

D-亮氨酸甲酯盐酸盐