(r)-3-氨基-3-甲基-丙酸叔丁酯

(1'S,6R)-1-benzyloxycarbonyl-3-(1'-phenyleth-1'-yl)-6-methylperihydropyrimidin-4-one

(3R)-3-(tosylamino)butanoic acid

(S)-3-amino-4-methylsulfanyl-butyric acid

(R)-tert-butyl 3-butyramidobutanoate