Ethyl 6-amino-3-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-carboxylate
Ethyl 2-amino-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-5-carboxylate
Methyl 3-amino-6-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-carboxylate
2-Bromo-5-chloro-6-cyano-3-(difluoromethyl)pyridine