Methyl 2-fluoro-6-(2,3,6-trichlorophenyl)isonicotinate
Methyl 2-fluoro-3-(2,3,5-trichlorophenyl)isonicotinate
4-(Difluoromethyl)-3-fluoropyridine-5-sulfonyl chloride
4-(Difluoromethyl)-2-fluoropyridine-6-sulfonyl chloride
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