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