3-甲基-2-氧代丁酸钠

N-Boc-L-缬氨酸

(3S,6R)-N,N'-bis-(p-methoxybenzyl)-3-isopropyl-6-methyl-piperazine-2,5-dione

(S)-3-异丙基-2,5-哌嗪二酮

L-缬氨酸甲酯