ethyl D-threo-4,5-dihydro-5-(4-methylsulphonylphenyl)-2-phenyl-4-oxazolecarboxylate

苯甲酰氯

(betaS)-N-苯甲酰基-beta-羟基-4-(甲基磺酰基)-D-苯基丙氨酸乙酯

(2RS.3SR)-2-amino-3-hydroxy-3-(4-methylsulfanyl-phenyl)-propionic acid