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