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