(E)-(S)-4-tert-butoxycarbonylamino-5-phenyl-pent-2-enoic acid methyl ester

BOC-L-苯丙氨酸

(R)-[1-benzyl-2-(2,2-dimethyl-4,6-dioxo-[1,3]dioxan-5-yl)-ethyl]-carbamic acid tert-butyl ester

(S)-[1-benzyl-2-(2,2-dimethyl-4,6-dioxo-[1,3]dioxan-5-yl)-2-oxo-ethyl]-carbamic acid tert-butyl ester