4-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine-5-carbonyl chloride
5-(Chloromethyl)-3-(difluoromethyl)-2-(trifluoromethyl)pyridine-4-carbonyl chloride
3-(Chloromethyl)-5-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-carbonyl chloride
5-(Chloromethyl)-3-(difluoromethyl)-4-(trifluoromethyl)pyridine-2-carbonyl chloride