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(E)-5-((2-chlorophenyl)diazenyl)-2-hydroxy-1-(2-hydroxyethyl)-4-methyl-6-oxo-1,6-dihydropyridine-3-carbonitrile
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(E)-5-((3-chlorophenyl)diazenyl)-2-hydroxy-1-(2-hydroxyethyl)-4-methyl-6-oxo-1,6-dihydropyridine-3-carbonitrile
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(E)-5-((3-chloro-2-methylphenyl)diazenyl)-2-hydroxy-1-(2-hydroxyethyl)-4-methyl-6-oxo-1,6-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-4-methyl-5-((4-nitrophenyl)diazenyl)-2-oxo-1-propyl-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-4-methyl-2-oxo-1-propyl-5-(p-tolyldiazenyl)-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1-(3-hydroxypropyl)-4-methyl-2-oxo-5-((3-(trifluoromethyl)phenyl)diazenyl)-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((3-chloro-2-methylphenyl)diazenyl)-6-hydroxy-1-(3-hydroxypropyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((3-chloro-2-methylphenyl)diazenyl)-6-hydroxy-1-(3-hydroxypropyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((4-chlorophenyl)diazenyl)-6-hydroxy-4-methyl-2-oxo-1-propyl-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1-(2-hydroxyethyl)-4-methyl-2-oxo-5-(phenyldiazenyl)-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1-(2-hydroxyethyl)-4-methyl-5-((4-nitrophenyl)diazenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-5-((4-hydroxyphenyl)diazenyl)-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-5-((4-hydroxyphenyl)diazenyl)-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1,4-dimethyl-2-oxo-5-(o-tolyldiazenyl)-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1,4-dimethyl-2-oxo-5-(phenyldiazenyl)-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1,4-dimethyl-2-oxo-5-(phenyldiazenyl)-1,2-dihydropyridine-3-carbonitrile
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(E)-2-chloro-5-((5-cyano-2-hydroxy-1-(3-hydroxypropyl)-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)diazenyl)benzoic acid
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(E)-2-chloro-5-((5-cyano-2-hydroxy-1-(3-hydroxypropyl)-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)diazenyl)benzoic acid
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(E)-5-((2,5-dimethylphenyl)diazenyl)-6-hydroxy-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((2,6-dimethylphenyl)diazenyl)-6-hydroxy-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((3,4-dimethylphenyl)diazenyl)-6-hydroxy-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1,4-dimethyl-5-(naphthalen-2-yldiazenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((4-ethoxyphenyl)diazenyl)-6-hydroxy-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((4-ethoxyphenyl)diazenyl)-6-hydroxy-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((4-chlorophenyl)diazenyl)-6-hydroxy-1-(2-hydroxyethyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((2-chlorophenyl)diazenyl)-6-hydroxy-1-(2-hydroxyethyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((2-chlorophenyl)diazenyl)-6-hydroxy-1-(2-hydroxyethyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-2-chloro-5-((5-cyano-2-hydroxy-4-methyl-6-oxo-1-propyl-1,6-dihydropyridin-3-yl)diazenyl)benzoic acid
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(E)-3-((5-cyano-2-hydroxy-1-(2-hydroxyethyl)-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)diazenyl)benzoic acid
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(E)-5-((3-chlorophenyl)diazenyl)-6-hydroxy-1-(2-hydroxyethyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1-(2-hydroxyethyl)-5-((4-iodophenyl)diazenyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1-(2-hydroxyethyl)-5-((4-iodophenyl)diazenyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((3-chloro-2-methylphenyl)diazenyl)-6-hydroxy-1-(2-hydroxyethyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-5-((2-methoxyphenyl)diazenyl)-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-5-((2-methoxyphenyl)diazenyl)-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-5-((3-chloro-4-methylphenyl)diazenyl)-6-hydroxy-1-(2-hydroxyethyl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-6-hydroxy-1,4-dimethyl-5-((2-nitrophenyl)diazenyl)-2-oxo-1,2-dihydropyridine-3-carbonitrile
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(E)-4-((5-cyano-2-hydroxy-1-(2-hydroxyethyl)-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)diazenyl)benzoic acid
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(E)-4-((5-cyano-2-hydroxy-1-(2-hydroxyethyl)-4-methyl-6-oxo-1,6-dihydropyridin-3-yl)diazenyl)benzoic acid
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