Methyl 5-methyl-2-phenyl-1,3-oxazole-4-carboxylate

苯甲酰胺

5-甲基-2-苯基-1,3--恶唑-4-甲酸

methyl 2-benzamido-3-oxobutanoate

(2S,3S)-erythro-N-benzoyl-threonine