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