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