3-(Bromomethyl)-2-(difluoromethyl)pyridine-5-sulfonyl chloride
3-(Difluoromethyl)-4-nitropyridine-2-sulfonyl chloride
Ethyl 3-(difluoromethyl)-2-nitropyridine-4-carboxylate
2-(Bromomethyl)-6-(difluoromethyl)pyridine-4-sulfonyl chloride
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