Ethyl 6-bromo-3-(bromomethyl)-4-(difluoromethyl)pyridine-2-acetate
Ethyl 2-bromo-3-(bromomethyl)-5-(difluoromethyl)pyridine-6-acetate
Methyl 3-bromo-6-(bromomethyl)-4-(difluoromethyl)pyridine-2-acetate
3-Chloro-5-(difluoromethyl)-6-hydroxy-2-(trifluoromethyl)pyridine