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