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