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