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(2007/10/02)Methyl ester of (+)-N-acetylphenylalanine
<5-phenyl-4-acetamino-3-oxo-2-(ethoxymethylphosphinyl)>-L-pentanoic acid ethyl ester
L-(4-phenyl-3-acetylamino-2-oxobutyl)methylphosphinic acid
5-phenyl-4-amino-3-oxo-2-methylphosphino-L-pentanoic acid
L-(4-phenyl-3-acetylamino-2-oxobutyl)methylphosphinic acid ethyl ester