(1S)-1-(2R)-环氧乙基-2-苯乙基氨基甲酸叔丁酯

N-(tert-butoxycarbonyl)-4(S)-amino-3(R)-hydroxy-5-phenylpentanoic acid ethyl ester

(2S,3S)-1-bromo-3-((tert-butoxycarbonyl)amino)-4-phenyl-2-butanol

(4S,5S)-4-benzyl-5-(bromomethyl)-3-(tert-butoxycarbonyl)-2,2-dimethyloxazolidine

(3S,4aS,8aS)-