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