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