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(2007/10/03)formaldehyd
Z-L-Tyr-OH
(S)-3-benzyloxycarbonyl-4-(4-hydroxyphenyl)methyloxazolidin-5-one
(S)-N-benzyloxycarbonyl-4-hydroxy-3-hydroxymethylphenylalanine
(S)-2-(Benzyloxycarbonyl-hydroxymethyl-amino)-3-(4-hydroxy-3-hydroxymethyl-phenyl)-propionic acid