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