3-Bromo-4-cyano-2-(trifluoromethoxy)pyridine-6-carbonyl chloride
4-Bromo-2-chloro-6-(trifluoromethoxy)pyridine-3-carbonyl chloride
4-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-6-carbonyl chloride
4-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-carbonyl chloride