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