4-Bromo-2-(difluoromethyl)-3-nitropyridine-5-sulfonamide
Methyl 2-chloro-3-(difluoromethyl)-4-fluoropyridine-6-carboxylate
3-Bromo-5-(difluoromethyl)-2-nitropyridine-4-sulfonamide
Ethyl 2-chloro-6-(difluoromethyl)-5-fluoropyridine-3-carboxylate
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