Ethyl 3-(3,4-dichlorophenyl)-2-hydroxyisonicotinate
Methyl 3-(3,4-dichlorophenyl)-5-hydroxyisonicotinate
Methyl 5-(3,4-dichlorophenyl)-2-hydroxyisonicotinate
Methyl 5-(3,4-dichlorophenyl)-2-hydroxynicotinate
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