Ethyl 4-amino-6-(difluoromethyl)-3-nitropyridine-2-acetate
2-Amino-4-(chloromethyl)-6-(difluoromethyl)-3-(trifluoromethyl)pyridine
6-Amino-4-(difluoromethyl)-3-nitropyridine-2-sulfonamide
2-Amino-3-(chloromethyl)-6-(difluoromethyl)-4-(trifluoromethyl)pyridine