Ethyl 2-(difluoromethyl)-3-fluoro-6-nitropyridine-5-acetate
3-(Difluoromethyl)-6-fluoro-2-nitropyridine-4-carbonyl chloride
3-(Difluoromethyl)-4-fluoro-5-nitropyridine-2-carbonyl chloride
3-(Chloromethyl)-2-(difluoromethyl)-4-fluoropyridine-5-acetonitrile