3-(Bromomethyl)-4-(difluoromethyl)pyridine-5-sulfonyl chloride
Ethyl 4-(difluoromethyl)-2-nitropyridine-3-carboxylate
3-(Difluoromethyl)-5-nitropyridine-2-sulfonyl chloride
Ethyl 3-(difluoromethyl)-4-nitropyridine-2-carboxylate
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