Methyl 2-hydroxy-5-(2,4,6-trichlorophenyl)nicotinate
Methyl 2-hydroxy-5-(2,3,4-trichlorophenyl)nicotinate
Methyl 3-hydroxy-5-(3,4,5-trichlorophenyl)isonicotinate
Methyl 3-hydroxy-5-(2,4,6-trichlorophenyl)isonicotinate
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