6-(Difluoromethyl)-2-methylpyridine-3-sulfonamide
5-(Difluoromethyl)-2-(fluoromethyl)-4-nitropyridine
3-(Difluoromethyl)-5-(fluoromethyl)-4-nitropyridine
3-(Chloromethyl)-5-(difluoromethyl)-4-nitropyridine
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