二碳酸二叔丁酯

D-苯甘氨醇

(4R,5S)-5-acetoxy-2-oxo-4-phenyloxazolidine-3-carboxylic acid tert-butylester

tert-butyl (R)-(2-(benzyloxy)-1-phenylethyl)carbamate

tert-butyl (R)-(2-(dimethyl(phenyl)silyl)-1-phenylethyl)carbamate