2-Amino-6-(difluoromethyl)-3-nitropyridine-4-carboxaldehyde
Ethyl 3-amino-2-(difluoromethyl)-4-nitropyridine-6-carboxylate
Ethyl 2-amino-6-(difluoromethyl)-5-nitropyridine-3-carboxylate
5-Amino-3-(chloromethyl)-4-(difluoromethyl)-2-(trifluoromethyl)pyridine