Ethyl 2-fluoro-3-(perfluorophenyl)isonicotinate
Ethyl 2-chloro-6-(2,4,5-trichlorophenyl)isonicotinate
Ethyl 4-amino-3-(difluoromethyl)-6-iodopyridine-2-carboxylate
Ethyl 4-amino-3-(difluoromethyl)-2-iodopyridine-6-carboxylate
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