(2S)-methyl 2-carbamoyl-2-methyl-3-phenylpropanoate

methyl 2-(phenylmethyl)-2-aminopropionate

ethyl (S)-2-benzyl-2-methyl-3-oxobutyrate

4-苄基-2-苯基-2-噁唑啉-5-酮

N-苯甲酰-L-苯基丙氨酸