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