(2S,3R)-2-amino-3-hydroxy-3-(4-nitro-phenyl)-propionic acid methyl ester

(1R,2R)-1,3-diacetoxy-2-acetylamino-1-(4-nitro-phenyl)-propane

(2E)-3-(4-硝基苯基)-2-丙烯酸乙酯

(4S,5R)-ethyl 3-benzoyl-5-(4-nitrophenyl)-2-oxooxazolidine-4-carboxylate