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5-Oxo-5,6,7,8-tetrahydro-naphthalene-1-carboxylic acid

5-Oxo-5-(3-oxo-3,4-dihydro-2H-quinoxalin-1-yl)-pentanoic acid

5-Oxo-1-phenyl-pyrrolidine-3-carboxylic acid

5-Oxo-1-phenyl-2,5-dihydro-1H-pyrazole-3-carboxylic acid

5-Oxo-1-o-tolyl-pyrrolidine-3-carboxylic acid

5-Oxo-1-m-tolyl-pyrrolidine-3-carboxylic acid

5-Oxo-1-[4-(trifluoromethyl)benzyl]pyrrolidine-3-carboxylic acid

2-Fluoro-5-methylphenol

5-Oxo-1-(2-phenylethyl)pyrrolidine-3-carboxylic acid

5-Oxazolecarboxaldehyde

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