Boc-L-β-高丙氨酸

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

(R)-3-(2-chloroacetamido)butanoic acid

(1'R,6S)-6-methyl-1-(1'-phenylethyl)dihydropyrimidin-2,4-dione

(S)-3-Cbz-氨基丁酸