Methyl 2-(chloromethyl)-6-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-carboxylate
2-(Chloromethyl)-3-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-methanol
3-Bromo-5-(difluoromethyl)pyridine-2-carbonyl chloride
4-Chloro-2-(difluoromethyl)pyridine-6-acetic acid