(2S)-3-(4-hydroxyphenyl)-2-[methyl(phenylmethoxycarbonyl)amino]propanoic acid

(S)-3-benzyloxycarbonyl-4-(4-hydroxyphenyl)methyloxazolidin-5-one

N-苄氧羰基-L-酪氨酸

1,4-dimethyl-3-(p-hydroxy)benzyl-2,5-piperazinedione

(S)-3-(4-(methoxymethoxy)benzyl)-1,4-dimethylpiperazine-2,5-dione