Ethyl 3-(difluoromethyl)-2-methyl-6-nitropyridine-4-carboxylate
Ethyl 3-(difluoromethyl)-2-methyl-5-nitropyridine-4-carboxylate
6-(Difluoromethyl)-4-methyl-2-nitropyridine-3-carbonyl chloride
Ethyl 3-(difluoromethyl)-2-methyl-4-nitropyridine-5-carboxylate