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