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(2007/10/03)formaldehyd
3-Phenyl-2-{[1-phenyl-meth-(E)-ylidene]-amino}-propionic acid ethyl ester
ethyl (S)-2-(benzylideneamino)-3-phenylpropionate
(L)-phenylalanine ethyl ester hydrochloride
[3-((S)-2-Acetylamino-propionylamino)-3-benzyl-2-oxo-azetidin-1-yl]-methyl-carbamic acid benzyl ester
N'-(2-tert-butoxycarbonylamino-2-hydroxymethyl-3-phenyl-propionyl)-N-methyl-hydrazinecarboxylic acid benzyl ester
1-[(N-methyl-N-benzyloxycarbonyl)-amino]-3-benzyl-3-[(tert-butoxycarbonyl)-amino]-2-azetidinone
2-acetylamino-N-(3-benzyl-1-methylamino-2-oxo-azetidin-3-yl)-propionamide
N-(tert-butoxycarbonyl)-α-hydroxymethyl-DL-phenylalanine