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