(S)-6-Hydroxy-piperazine-1,2,4-tricarboxylic acid 4-benzyl ester 1-tert-butyl ester

(S)-N2-(tert-butoxycarbonyl)-N3-(benzyloxycarbonyl)-N3-(2-propenyl)-2,3-diaminopropanoic acid

(S)-α-Boc-氨基-β-丙内酯

氯甲酸苄酯

(S)-3-(allylamino)-2-((tert-butoxycarbonyl)amino)propanoic acid