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